Tokyo ( , ;
: 東京, ''Tōkyō'' ), officially the Tokyo Metropolis (
: 東京都, ''Tōkyō-to''), is the de facto capitalNo Japanese law has designated Tokyo as the Japanese capital. and most populous prefecture of Japan. Located at the head of
Tokyo Bay
Tokyo Bay
, the prefecture forms part of the Kantō region on the central Pacific coast of
Japan , image_flag = Flag of Japan.svg , alt_flag = Centered deep red circle on a white rectangle , image_coat = Imperial Seal of Japan.svg , alt_coat = Golden circle subdiv ...
's main island of Honshu. Tokyo is the political and economic center of the country, as well as the seat of the
Emperor of Japan The Emperor of Japan is the head of state A head of state (or chief of state) is the public persona who officially embodies a state (polity), state#Foakes, Foakes, pp. 110–11 " he head of statebeing an embodiment of the State itself o ...
and the national government. As of 2021, the prefecture has an estimated population of 13,960,236. The Greater Tokyo Area is the most populous metropolitan area in the world, with more than 37.393 million residents as of 2020. Originally a fishing village, named Edo, the city became a prominent political center in 1603, when it became the seat of the
Tokugawa shogunate The Tokugawa shogunate (, Japanese 徳川幕府 ''Tokugawa bakufu''), also known as the , was the feudal military government of Japan during the Edo period from 1603 to 1868.Louis-Frédéric, Nussbaum, Louis-Frédéric. (2005)"''Tokugawa-jidai''"i ...

Tokugawa shogunate
. By the mid-18th century, Edo was one of the most populous cities in the world at over one million. Following the end of the shogunate in 1868, the imperial capital in
Kyoto Kyoto (; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and ...
was moved to the city, which was renamed Tokyo (literally "eastern capital"). Tokyo was devastated by the 1923 Great Kantō earthquake, and again by Allied bombing raids during World War II. Beginning in the 1950s, the city underwent rapid reconstruction and expansion, going on to lead Japan's Japanese economic miracle, post-war economic recovery. Since 1943, the Tokyo Metropolitan Government has administered the prefecture's special wards of Tokyo, 23 special wards (formerly Tokyo City), various bedroom communities, bed towns in the western area, and Tokyo Islands, two outlying island chains. Tokyo is the List of cities by GDP, largest urban economy in the world by gross domestic product, and is categorized as an global city, Alpha+ city by the Globalization and World Cities Research Network. Part of an industrial region that includes the cities of Yokohama, Kawasaki, Kanagawa, Kawasaki, and Chiba (city), Chiba, Tokyo is Japan's leading center of business and finance. In 2019, it hosted 36 of the Fortune Global 500, ''Fortune'' Global 500 companies. In 2020, it ranked fourth on the Global Financial Centres Index, behind New York City, London, and Shanghai. Tokyo has the world's tallest tower Tokyo Skytree and the world's largest underground floodwater diversion facility Metropolitan Area Outer Underground Discharge Channel, MAOUDC. The Tokyo Metro Ginza Line is the oldest underground metro line in East Asia (1927). The city has hosted multiple international events, including the 1964 Summer Olympics and three G7 Summits (1979, 1986, and 1993); it will also host the 2020 Summer Olympics, which were ultimately postponed to 2021 due to the COVID-19 pandemic in Japan, COVID-19 pandemic. Tokyo is an international center of Research and development in Japan, research and development and is represented by several major List of universities in Tokyo, universities, notably the University of Tokyo. Tokyo Station is the central hub for Japan's Shinkansen bullet train system, and the city is served by an extensive network of rail and subways. Notable districts of Tokyo include Chiyoda, Tokyo, Chiyoda (the site of the Tokyo Imperial Palace, Imperial Palace), Shinjuku (the city's administrative center), and Shibuya (a commercial, cultural and business hub).


Tokyo was originally known as , a kanji compound of wikt:江, 江 (''e'', "cove, inlet") and wikt:戸, 戸 (''to'', "entrance, gate, door").Room, Adrian. ''Placenames of the World''. McFarland & Company (1996)
p. 360
. .
The name, which can be translated as "estuary", is a reference to the original settlement's location at the meeting of the Sumida River and . During the Meiji Restoration in 1868, the name of the city was changed to when it became the new imperial capital, in line with the East Asian tradition of including the word capital () in the name of the capital city (for example,
Kyoto Kyoto (; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and ...
(), Keijō (), Beijing (), Nanjing (), and Xijing (disambiguation), Xijing ()). During the early Meiji period, the city was sometimes called "Tōkei", an alternative pronunciation for the same characters representing "Tokyo", making it a kanji homograph. Some surviving official English documents use the spelling "Tokei"; however, this pronunciation is now obsolete.


Pre-1869 (Edo period)

Tokyo was originally a small fishing village, Edo, in what was formerly part of the old Musashi Province. Edo was first fortified by the Edo clan, in the late twelfth century. In 1457, Ōta Dōkan built Edo Castle. In 1590, Tokugawa Ieyasu moved from Mikawa Province (his lifelong base) to the Kantō region. When he became ''shōgun'' in 1603, Edo became the center of his ruling. During the subsequent Edo period, Edo grew into one of the largest cities in the world with a population topping one million by the 18th century. But Edo was still the home of the
Tokugawa shogunate The Tokugawa shogunate (, Japanese 徳川幕府 ''Tokugawa bakufu''), also known as the , was the feudal military government of Japan during the Edo period from 1603 to 1868.Louis-Frédéric, Nussbaum, Louis-Frédéric. (2005)"''Tokugawa-jidai''"i ...

Tokugawa shogunate
and not the capital of Japan (the Emperor himself lived in
Kyoto Kyoto (; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and ...
from 794 to 1868). During the Edo era, the city enjoyed a prolonged period of peace known as the ''Pax Tokugawa'', and in the presence of such peace, Edo adopted a stringent policy of seclusion, which helped to perpetuate the lack of any serious military threat to the city. The absence of war-inflicted devastation allowed Edo to devote the majority of its resources to rebuilding in the wake of the consistent fires, earthquakes, and other devastating natural disasters that plagued the city. However, this prolonged period of seclusion came to an end with the arrival of American Commodore Matthew C. Perry in 1853. Commodore Perry forced the opening of the ports of Shimoda, Shizuoka, Shimoda and Hakodate, leading to an increase in the demand for new foreign goods and subsequently a severe rise in inflation. Social unrest mounted in the wake of these higher prices and culminated in widespread rebellions and demonstrations, especially in the form of the "smashing" of rice establishments. Meanwhile, supporters of the Meiji Emperor leveraged the disruption that these widespread rebellious demonstrations were causing to further consolidate power by overthrowing the last Tokugawa ''shōgun'', Tokugawa Yoshinobu, Yoshinobu, in 1867. After 265 years, the ''Pax Tokugawa'' came to an end. File:Edo_P2.jpg, Edo Castle, 17th century File:Commodore-Perry-Visit-Kanagawa-1854.jpg, Commodore Matthew Perry expedition and his first arrival in Japan in 1853 File:Shitamachi.jpg, Famous Edo Places. Yamanote (above) Nihonbashi (center) and Shitamachi (below) (circa 1858) File:Hiroshige%2C_Sugura_street.jpg, Suruga street with Mount Fuji by Hiroshige (1856)


In 1869, the 17-year-old Emperor Meiji moved to Edo, and in accordance, the city was renamed Tokyo (meaning Eastern Capital). The city was divided into Yamanote and Shitamachi. Tokyo was already the nation's political and cultural center, and the emperor's residence made it a de facto imperial capital as well, with the former Edo Castle becoming the Tokyo Imperial Palace, Imperial Palace. The Tokyo City, city of Tokyo was officially established on May 1, 1889. The Tokyo Metro Ginza Line portion between and was the first subway line built in Japan and East Asia completed on December 30, 1927. Central Tokyo, like Osaka, has been designed since about 1900 to be centered on major railway stations in a high-density fashion, so suburban railways were built relatively cheaply at street level and with their own right-of-way (transportation), right-of-way. Though Shuto Expressway, expressways have been built in Tokyo, the basic design has not changed. Tokyo went on to suffer two major catastrophes in the 20th century: the 1923 Great Kantō earthquake, which left 140,000 dead or missing; and World War II. File:Tokyo-edohakub-ginza.jpg, The 1870s Chuo-dori terraces in Tokyo File:Tokyo-Sumida-River-Taito-ku-1930.png, Aerial view of the Sumida River with Taitō-ku (west) and Sumida, Tokyo, Sumida-ku (east) in Tokyo, c. 1930 File:Nihonbashi after Great Kanto earthquake.JPG, Nihonbashi after Great Kanto Earthquake, September 1, 1923 File:Ginza in 1933.JPG, Ginza area in 1933 File:Eidan type 1000 train.jpg, "The first underground railway in the Orient", Tokyo Metro Ginza Line, Tokyo Underground opened on December 30, 1927


In 1943 , the Tokyo City, city of Tokyo merged with the Tokyo Prefecture, prefecture of Tokyo to form the "Metropolitan Prefecture" of Tokyo. Since then, the Tokyo Metropolitan Government served as both the prefecture government for Tokyo, as well as administering the special wards of Tokyo, for what had previously been Tokyo City. World War II wreaked widespread destruction of most of the city due to the persistent Allies of World War II, Allied air raids on Japan and the use of incendiary bombs. The bombing of Tokyo in 1944 and 1945 is estimated to have killed between 75,000 and 200,000 civilians and left more than half of the city destroyed. The deadliest night of the war came on March 9–10, 1945, the night of the American "Operation Meetinghouse" raid; as nearly 700,000 incendiary bombs rained on the eastern half of the city, mainly in heavily residential wards. Two-fifths of the city were completely burned, more than 276,000 buildings were demolished, 100,000 civilians were killed, and 110,000 more were injured. Between 1940 and 1945, the population of Japan's capital city dwindled from 6,700,000 to less than 2,800,000, with the majority of those who lost their homes living in "ramshackle, makeshift huts". File:Firebombing of Tokyo.jpg, Tokyo Bombing in 1945 File:Tokyo 1945-3-10-1.jpg, Aftermath of Tokyo Bombing in March 1945 File:Sto1001.jpg, Nihonbashi in 1946


After the war, Tokyo became the base from which the United States under Douglas MacArthur administered Japan for six years. Tokyo struggled to rebuild as Occupation of Japan, occupation authorities stepped in and drastically cut back on Japanese government rebuilding programs, focusing instead on simply improving roads and transportation. Tokyo did not experience fast economic growth until the 1950s. After the occupation of Japan ended in 1952, Tokyo was completely rebuilt and was showcased to the world during the 1964 Summer Olympics. The 1970s brought new high-rise developments. In 1978, Sunshine 60—the tallest skyscraper in Asia until 1985—and Narita International Airport were constructed, and the population increased to about 11 million in the metropolitan area. The Edo-Tokyo Open Air Architectural Museum has historic Japanese architecture, Japanese buildings that existed in the urban landscape of pre-war Tokyo. Tokyo subway, Tokyo's subway and commuter rail network became one of the busiest in the world as more and more people moved to the area. In the 1980s, real estate prices skyrocketed Japanese asset price bubble, during a real estate and debt bubble. The bubble burst in the early 1990s, and many companies, banks, and individuals were caught with mortgage-backed debts while real estate was shrinking in value. A major recession followed, making the 1990s Japan's "Lost Decade (Japan), Lost Decade", from which it is now slowly recovering. Tokyo still sees new urban developments on large lots of less profitable land. Recent projects include Ebisu, Shibuya, Ebisu Garden Place, Tennōzu Isle, Shiodome, Roppongi Hills, Shinagawa, Tokyo, Shinagawa (now also a Shinkansen station), and the Marunouchi side of Tokyo Station. Buildings of significance have been demolished for more up-to-date shopping facilities such as Omotesando Hills. Land reclamation projects in Tokyo have also been going on for centuries. The most prominent is the Odaiba area, now a major shopping and entertainment center. Various plans have been proposed for transferring national government functions from Tokyo to secondary capitals in other regions of Japan, to slow down rapid development in Tokyo and revitalize economically lagging areas of the country. These plans have been controversial within Japan and have yet to be realized. The 2011 Tōhoku earthquake and tsunami that devastated much of the northeastern coast of Honshu was felt in Tokyo. However, due to Tokyo's earthquake-resistant infrastructure, damage in Tokyo was very minor compared to areas directly hit by the tsunami, although activity in the city was largely halted. The subsequent Fukushima Daiichi nuclear disaster, nuclear crisis caused by the tsunami has also largely left Tokyo unaffected, despite occasional spikes in radiation levels. On September 7, 2013, the IOC selected Tokyo to host the 2020 Summer Olympics. Tokyo was supposed to be the first Asian city to host the Olympic Games twice. However, due to the global outbreak and economic impact of COVID-19 pandemic, the 2020 Summer Olympics games were ultimately postponed to 2021 and it is unclear how the city will deal with an increasing number of issues, urging scholars to offer possible alternatives approaches to tackle the most urgent problems. File:Tokyo Tower and around Skyscrapers.jpg, Tokyo Tower, built in 1958 File:Kokuritsu Yoyogi Kyōgijō 1.jpg, Yoyogi National Gymnasium built for the 1964 Summer Olympics File:Sunshine 60.JPG, Sunshine 60, tallest building in Asia until 1985

Geography and government

The mainland portion of Tokyo lies northwest of and measures about east to west and north to south. The average elevation in Tokyo is . Chiba Prefecture borders it to the east, Yamanashi Prefecture, Yamanashi to the west, Kanagawa Prefecture, Kanagawa to the south, and Saitama Prefecture, Saitama to the north. Mainland Tokyo is further subdivided into the special wards (occupying the eastern half) and the Tama area () stretching westwards. Tokyo has a latitude of 35.65 (near the 36th parallel north), which makes it more southern than Rome (41.90), Madrid (40.41) and New York City (40.71). Also within the administrative boundaries of Tokyo Metropolis are two island chains in the Pacific Ocean directly south: the Izu Islands, and the Ogasawara Islands, which stretch more than away from the mainland. Because of these islands and the mountainous regions to the west, Tokyo's overall population density figures far under-represent the real figures for the urban and suburban regions of Tokyo. Under Law of Japan, Japanese law, Tokyo is designated as a , translated as ''metropolis''. Its administrative structure is similar to that of Japan's other Prefectures of Japan, prefectures. The , which until 1943 constituted the Tokyo City, city of Tokyo, are self-governing Municipalities of Japan, municipalities, each having a mayor, a council, and the status of a city. In addition to these 23 special wards, Tokyo also includes 26 more cities ( -shi), five towns ( -chō or machi), and eight villages ( -son or -mura), each of which has a local government. The Tokyo Metropolitan Government administers the whole metropolis including the 23 special wards and the cities and towns that constitute the prefecture. It is headed by a publicly elected governor and metropolitan assembly. Its Tokyo Metropolitan Government Building, headquarters is in Shinjuku, Tokyo, Shinjuku Ward.

Special wards

The of Tokyo comprise the area formerly incorporated as Tokyo City. In the present day, this area is still often referred to as the city of Tokyo, although legally, no such entity exists. On July 1, 1943, Tokyo City was merged with forming the current "metropolitan prefecture". As a result, unlike other Wards of Japan, city wards in Japan, these wards are not conterminous with a larger incorporated city. While falling under the jurisdiction of Tokyo Metropolitan Government, each ward is also a borough with its own elected leader and council, like other cities of Japan. The special wards use the word "city" in their official English name (e.g. Chiyoda City). The wards differ from other cities in having a unique administrative relationship with the prefectural government. Certain municipal functions, such as waterworks, sewerage, and fire-fighting, are handled by the Tokyo Metropolitan Government. To pay for the added administrative costs, the prefecture collects municipal taxes, which would usually be levied by the city. The special wards of Tokyo are: The "three central wards" of Tokyo – Chiyoda, Chūō and Minato – are the business core of the city, with a daytime population more than seven times higher than their nighttime population. Chiyoda Ward is unique in that it is in the very heart of the former Tokyo City, yet is one of the least populated wards. It is occupied by many major List of companies of Japan, Japanese companies and is also the seat of the national government, and the Emperor of Japan, Japanese emperor. It is often called the "political center" of the country. Akihabara, known for being an otaku cultural center and a shopping district for computer goods, is also in Chiyoda.

Tama Area (Western Tokyo)

To the west of the special wards, Tokyo Metropolis consists of cities, towns, and villages that enjoy the same legal status as those elsewhere in Japan. While serving as "Bedroom community, bed towns" for those working in central Tokyo, some of them also have a local commercial and industrial base, such as Tachikawa. Collectively, these are often known as the Tama area or Western Tokyo.


Twenty-six cities lie within the western part of Tokyo. These are: The Tokyo Metropolitan Government has designated Hachiōji, Tachikawa, Machida, Ōme and Tama New Town as regional centers of the Tama area, as part of its plans to relocate urban functions away from central Tokyo.

Nishi-Tama District

The far west of the Tama area is occupied by the district (''gun'') of Nishitama District, Tokyo, Nishi-Tama. Much of this area is mountainous and unsuitable for urbanization. The highest mountain in Tokyo, Mount Kumotori, is high; other mountains in Tokyo include Takanosu (), Odake (), and Mount Mitake (Tokyo), Mitake (). Lake Okutama, on the Tama River near Yamanashi Prefecture, is Tokyo's largest lake. The district is composed of three towns (Hinode, Tokyo, Hinode, Mizuho, Tokyo, Mizuho and Okutama, Tokyo, Okutama) and one village (Hinohara, Tokyo, Hinohara). File:多摩ニュータウンの全景(2013年10月12日撮影).jpg, Tama File:Takao-san HachiojiUrbanDistrict.JPG, Hachioji File:Musashino in the afternoon.jpg, Musashino


Tokyo has numerous outlying islands, which extend as far as from central Tokyo. Because of the islands' distance from the administrative headquarters of the Tokyo Metropolitan Government in Shinjuku, local subprefectural branch offices administer them. The Izu Islands are a group of volcanic islands and form part of the Fuji-Hakone-Izu National Park. The islands in order from closest to Tokyo are Izu Ōshima, Toshima Island, Toshima, Nii-jima, Shikine-jima, Kōzu-shima, Miyake-jima, Mikurajima, Hachijō-jima, and Aogashima. The Izu Islands are grouped into three subprefectures. Izu Ōshima and Hachijojima are towns. The remaining islands are six villages, with Niijima and Shikinejima forming Niijima, Tokyo, one village. The Bonin Islands, Ogasawara Islands include, from north to south, Chichi-jima, Nishinoshima (Ogasawara), Nishinoshima, Haha-jima, North Iwo Jima, Kita Iwo Jima, Iwo Jima, and Minami Iwo Jima. Ogasawara also administers two tiny outlying islands: Minami Torishima, the easternmost point in Japan and at the most distant island from central Tokyo, and Okinotorishima, the southernmost point in Japan. Japan's claim on an exclusive economic zone (EEZ) surrounding Okinotorishima is contested by China and South Korea as they regard Okinotorishima as uninhabitable rocks which have no EEZ. The Iwo chain and the outlying islands have no permanent population, but hosts Japan Self-Defense Forces personnel. Local populations are only found on Chichi-Jima and Haha-Jima. The islands form both Ogasawara Subprefecture and the village of Ogasawara, Tokyo.

National parks

As of March 31, 2008, 36% of the total land area of the prefecture was designated as Prefectural Natural Park, Natural Parks (second only to Shiga Prefecture), namely the Chichibu Tama Kai National Park, Chichibu Tama Kai, Fuji-Hakone-Izu National Park, Fuji-Hakone-Izu, and Ogasawara National Park, Ogasawara National Parks (the last a UNESCO World Heritage Sites in Japan, World Heritage Site); Meiji no Mori Takao Quasi-National Park; and Akikawa Kyūryō Prefectural Natural Park, Akikawa Kyūryō, Hamura Kusabana Kyūryō Prefectural Natural Park, Hamura Kusabana Kyūryō, Sayama Prefectural Natural Park (Tokyo), Sayama, Takao Jinba Prefectural Natural Park, Takao Jinba, Takiyama Prefectural Natural Park, Takiyama, and Tama Kyūryō Prefectural Natural Park, Tama Kyūryō Prefectural Natural Parks. A number of museums are located in Ueno Park: Tokyo National Museum, National Museum of Nature and Science, Shitamachi Museum and National Museum of Western Art, National Museum for Western Art, among others. There are also artworks and statues at several places in the park. There is also a zoo in the park, and the park is a popular destination to view cherry blossoms.


Minor quakes

Tokyo is near the Boso Triple Junction, boundary of three plates, making it an extremely active region for smaller quakes and Slow earthquake, slippage which frequently affect the urban area with swaying as if in a boat, although epicenters within mainland Tokyo (excluding Tokyo's –long island jurisdiction) are quite rare. It is not uncommon in the metro area to have hundreds of these minor quakes (magnitudes 4–6) that can be felt in a single year, something local residents merely brush off but can be a source of anxiety not only for foreign visitors but for Japanese from elsewhere as well. They rarely cause much damage (sometimes a few injuries) as they are either too small or far away as quakes tend to dance around the region. Particularly active are offshore regions and to a lesser extent Chiba Prefecture, Chiba and Ibaraki Prefecture, Ibaraki.

Infrequent powerful quakes

Tokyo has been hit by powerful megathrust earthquakes in 1703, 1782, 1812, 1855, 1923, and much more indirectly (with some soil liquefaction, liquefaction in landfill zones) in 2011 Tōhoku earthquake and tsunami, 2011; the frequency of direct and large quakes is a relative rarity. The 1923 earthquake, with an estimated magnitude of 8.3, killed 142,000 people, the last time the urban area was directly hit. The 2011 quake focus was hundreds of kilometers away and resulted in no direct deaths in the metropolitan area.

Volcanic eruptions

Mount Fuji is about southwest of Tokyo. There is a low risk of eruption. The last recorded was the Hōei eruption of Mount Fuji, Hōei eruption which started on December 16, 1707 and ended about January 1, 1708 (16 days). During the Hōei eruption, the ash amount was 4cm in southern Tokyo (bay area) and 2cm to 0.5 cm in central Tokyo. Kanagawa had 16cm to 8cm ash and Saitama Prefecture, Saitama 0.5 to 0 cm.https://commons.wikimedia.org/wiki/File:Volcanic-ash-downfall_map_of_Mt.Fuji_Hoei-eruption01.jpg Ashfall distribution map for examining disaster prevention measures (Mt. Fuji Hoei eruption) If the wind blows north-east it could send volcanic ash to Tokyo metropolis. According to the government, less than a millimeter of the volcanic ash from a Mt. Fuji eruption could cause power grid problems such as blackouts and stop trains in the Tokyo metropolitan area. A mixture of ash with rain could stick to cellphone antennas, power lines and cause temporary power outages. The affected areas would need to be evacuated.

Water management

Tokyo is located on the Kantō Plain with 5 river systems and dozens of rivers that expand during each season. Important rivers are Edogawa, Tokyo, Edogawa, Naka River (Saitama Tokyo), Nakagawa, Arakawa River (Kantō), Arakawa, Kanda River, Kandagawa, Meguro River, Megurogawa and Tama River, Tamagawa. In 1947 Typhoon Kathleen struck Tokyo, destroying 31,000 homes and killing 1,100 people. In 1958 Typhoon Ida (1958), Typhoon Ida inflicted 400mm rain in 1 week which flooded streets. In the 1950s and 1960s, the Government of Japan, government invested 6–7% of the national budget on disaster and risk reduction. A huge system of dams, levees and tunnels was constructed. The purpose is to manage heavy rain, typhoon, typhonic rain, and river floods. Tokyo has currently the world's largest underground floodwater diversion facility called the Metropolitan Area Outer Underground Discharge Channel (MAOUDC). It took 13 years to build and was completed in 2006. The MAOUDC is a 6.3 km long system of tunnels, 22 meters underground, with 70 meter tall cylindrical tanks, where each tank is large enough to fit a space shuttle or the Statue of Liberty. During floods, excess water is collected from rivers and drained to the Edo River. Low-lying areas of Kōtō, Edogawa, Tokyo, Edogawa, Sumida, Tokyo, Sumida, Katsushika, Taitō and Arakawa, Tokyo, Arakawa near the Arakawa River (Kanto), Arakawa River are most at risk of flooding.


The former city of Tokyo and the majority of Tokyo prefecture lie in the humid subtropical climate zone (Köppen climate classification ''Cfa''), with hot, humid summers and mild to cool winters with occasional cold spells. The region, like much of Japan, experiences a one-month seasonal lag, with the warmest month being August, which averages , and the coolest month being January, averaging . The record low temperature is on January 13, 1876, while the record high is on July 20, 2004. The record highest low temperature is on August 12, 2013, making Tokyo one of only seven observation sites in Japan that have recorded a low temperature over . Annual rainfall averages nearly , with a wetter summer and a drier winter. Snowfall is sporadic, but does occur almost annually. Tokyo also often sees typhoons every year, though few are strong. The wettest month since records began in 1876 was October 2004, with of rain, including on the ninth of that month; the last of four months on record to observe no precipitation is December 1995. Annual precipitation has ranged from in 1984 to in 1938. Tokyo has experienced significant warming of its climate since temperature records began in 1876. The western mountainous area of mainland Tokyo, Okutama also lies in the humid subtropical climate (Köppen classification ''Cfa''). The climates of Tokyo's offshore territories vary significantly from those of the city. The climate of Chichijima in Ogasawara, Tokyo, Ogasawara village is on the boundary between the tropical savanna climate (Köppen classification ''Aw'') and the tropical rainforest climate (Köppen classification ''Af''). It is approximately south of the Greater Tokyo Area resulting in different climatic conditions. Tokyo's easternmost territory, the island of Minamitorishima in Ogasawara, Tokyo, Ogasawara village, is in the tropical savanna climate zone (Köppen classification ''Aw''). Tokyo's Izu and Ogasawara islands are affected by an average of 5.4 typhoons a year, compared to 3.1 in mainland Kantō.


Architecture of Tokyo, Architecture in Tokyo has largely been shaped by Tokyo's history. Twice in recent history has the metropolis been left in ruins: first in the 1923 Great Kantō earthquake and later after Bombing of Tokyo, extensive firebombing in World War II. Because of this, Tokyo's urban landscape consists mainly of modern and contemporary architecture, and older buildings are scarce.Hidenobu Jinnai. ''Tokyo: A Spatial Anthropology''. University of California Press (1995)
pp. 1–3
. .
Tokyo features many internationally famous forms of modern Architecture of Tokyo, architecture including Tokyo International Forum, Asahi Beer Hall, Mode Gakuen Cocoon Tower, NTT Docomo Yoyogi Building and Rainbow Bridge (Tokyo), Rainbow Bridge. Tokyo also features two distinctive towers: Tokyo Tower, and the new Tokyo Skytree, which is the tallest tower in both Japan and the world, and the second tallest structure in the world after the Burj Khalifa in Dubai. Mori Building Co started work on Tokyo's new tallest building which is set to be finished in March 2023. The project will cost 580 billion yen ($5.5 billion). Tokyo also contains Parks and gardens in Tokyo, numerous parks and gardens. There are four national parks in Tokyo Prefecture, including the Fuji-Hakone-Izu National Park, which includes all of the Izu Islands.


Tokyo has enacted a measure to cut greenhouse gases. Governor Shintaro Ishihara created Japan's first emissions cap system, aiming to reduce greenhouse gas emissions, greenhouse gas emission by a total of 25% by 2020 from the 2000 level. Tokyo is an example of an urban heat island, and the phenomenon is especially serious in its special wards.Barry, Roger Graham & Richard J. Chorley. ''Atmosphere, Weather and Climate''. Routledge (2003)
p. 344
. .
According to the Tokyo Metropolitan Government, the annual mean temperature has increased by about over the past 100 years. Tokyo has been cited as a "convincing example of the relationship between urban growth and climate". In 2006, Tokyo enacted the "10 Year Project for Green Tokyo" to be realized by 2016. It set a goal of increasing roadside trees in Tokyo to 1 million (from 480,000), and adding 1,000 ha of green space 88 of which will be a new park named "Umi no Mori" (sea forest) which will be on a reclaimed island in which used to be a landfill. From 2007 to 2010, 436 ha of the planned 1,000 ha of green space was created and 220,000 trees were planted bringing the total to 700,000. In 2014, road side trees in Tokyo have increased to 950,000, and a further 300 ha of green space has been added.


As of October 2012, the official intercensal estimate showed 13.506 million people in Tokyo with 9.214 million living within Tokyo's 23 wards. During the daytime, the population swells by over 2.5 million as workers and students commute from adjacent areas. This effect is even more pronounced in the three central wards of Chiyoda, Tokyo, Chiyoda, Chūō, Tokyo, Chūō, and Minato, Tokyo, Minato, whose collective population as of the 2005 National Census was 326,000 at night, but 2.4 million during the day. In 1889, the Home Ministry recorded 1,375,937 people in Tokyo City and a total of 1,694,292 people in Tokyo Prefecture, Tokyo-fu. In the same year, a total of 779 foreign nationals were recorded as residing in Tokyo. The most common nationality was English (209 residents), followed by American nationals (182) and Chinese nationals (137).


Tokyo has the List of cities by GDP, largest metropolitan economy in the world. According to a study conducted by PricewaterhouseCoopers, the Greater Tokyo Area (Tokyo-Yokohama) of 38 million people had a total GDP of $2 trillion in 2012 (at purchasing power parity), which topped that list. Tokyo is a major international finance center; it houses the headquarters of several of the world's largest investment banks and insurance companies, and serves as a hub for Japan's transportation, publishing, electronics and broadcasting industries. During the centralized growth of Japan's economy following World War II, many large firms moved their headquarters from cities such as Osaka (the historical commercial capital) to Tokyo, in an attempt to take advantage of better access to the government. This trend has begun to slow due to ongoing population growth in Tokyo and the high cost of living there. Tokyo was rated by the The Economist, Economist Intelligence Unit as the most expensive (highest Cost-of-living index, cost-of-living) city in the world for 14 years in a row ending in 2006, when it was replaced by Oslo, and later Paris. Tokyo emerged as a leading international Financial centre, financial center (IFC) in the 1960s and has been described as one of the three "command centers" for the world economy, along with New York City and London. In the 2020 Global Financial Centres Index, Global Financial Centers Index, Tokyo was ranked as having the fourth most competitive financial center in the world (alongside cities such as Economy of New York City#Finance, New York City, Economy of London#Financial services, London, Shanghai, Hong Kong, Singapore, Beijing, San Francisco#Economy, San Francisco, Shenzhen and Zurich in the top 10), and second most competitive in Asia (after Shanghai). The Japanese financial market opened up slowly in 1984 and accelerated its internationalisation with the "Japanese Big Bang" in 1998. Despite the emergence of Singapore and Hong Kong as competing financial centers, the Tokyo IFC manages to keep a prominent position in Asia. The Tokyo Stock Exchange is Japan's largest stock exchange, and third largest in the world by market capitalization and fourth largest by share turnover. In 1990 at the end of the Japanese asset price bubble, it accounted for more than 60% of the world stock market value. Tokyo had 8,460 ha (20,900 acres) of agricultural land as of 2003, according to the Ministry of Agriculture, Forestry and Fisheries (Japan), Ministry of Agriculture, Forestry and Fisheries, placing it last among the nation's prefectures. The farmland is concentrated in Western Tokyo. Perishables such as vegetables, fruits, and flowers can be conveniently shipped to the markets in the eastern part of the prefecture. ''Komatsuna'' and spinach are the most important vegetables; as of 2000, Tokyo supplied 32.5% of the ''komatsuna'' sold at its central produce market. With 36% of its area covered by forest, Tokyo has extensive growths of cryptomeria and Chamaecyparis obtusa, Japanese cypress, especially in the mountainous western communities of Akiruno, Ōme, Okutama, Hachiōji, Hinode, and Hinohara. Decreases in the price of timber, increases in the cost of production, and advancing old age among the forestry population have resulted in a decline in Tokyo's output. In addition, pollen, especially from cryptomeria, is a major Allergen#Seasonal allergies, allergen for the nearby population centers. Tokyo Bay was once a major source of fish. Most of Tokyo's fish production comes from the outer islands, such as Izu Ōshima and Hachijō-Jima. Skipjack tuna, nori, and ''Carangidae, aji'' are among the ocean products. Tourism in Tokyo is also a contributor to the economy. In 2006, 4.81 million foreigners and 420 million Japanese visits to Tokyo were made; the economic value of these visits totaled 9.4 trillion yen according to the Tokyo Metropolitan Government. Many tourists visit the various downtowns, stores, and entertainment districts throughout the neighborhoods of the special wards of Tokyo; particularly for school children on class trips, a visit to Tokyo Tower is ''de rigueur''. Cultural offerings include both omnipresent Japanese pop culture and associated districts such as Shibuya, Tokyo, Shibuya and Harajuku, subcultural attractions such as Studio Ghibli anime center, as well as museums like the Tokyo National Museum, which houses 37% of the country's artwork National Treasures of Japan, national treasures (87/233). The Toyosu Market in Tokyo is the largest wholesale fish and seafood market in the world since it opened on October 11, 2018. It is also one of the largest wholesale food markets of any kind. It is located in the Toyosu area of Kōtō ward. The Toyosu market holds strong to the traditions of its predecessor, the Tsukiji Fish Market and Nihonbashi fish market, and serves some 50,000 buyers and sellers every day. Retailers, whole-sellers, auctioneers, and public citizens alike frequent the market, creating a unique microcosm of organized chaos that still continues to fuel the city and its food supply after over four centuries.


Tokyo, as the center of the Greater Tokyo Area, is Japan's largest domestic and international hub for rail and ground transportation. However, its airspace has been under the US military's exclusive control after World War II. Public transportation within Tokyo is dominated by an extensive network of clean and efficient trains and subways run by a variety of operators, with buses, monorails and trams playing a secondary feeder role. There are up to 62 electric train lines and more than 900 train stations in Tokyo. Shibuya Crossing is the "world’s busiest pedestrian crossing", with circa 3,000 people crossing at a time. As a result of World War II, Japanese planes are generally forbidden to fly over Tokyo. Therefore, Japan constructed airports outside Tokyo. Narita International Airport in Chiba Prefecture is the major gateway for international travelers to Japan. Japan's flag carrier Japan Airlines, as well as All Nippon Airways, have a hub at this airport. Haneda Airport on the reclaimed land at Ōta, Tokyo, Ōta, offers domestic and international flights. As of 2018, some flight routes into Haneda are permitted through Tokyo airspace. Various islands governed by Tokyo have their own airports. Hachijō-jima (Hachijojima Airport), Miyakejima (Miyakejima Airport), and Izu Ōshima (Oshima Airport) have services to Tokyo International and other airports. Rail is the primary mode of transportation in Tokyo, which has the most extensive urban railway network in the world and an equally extensive network of surface lines. JR East operates Tokyo's largest railway network, including the Yamanote Line loop that circles the center of downtown Tokyo. It operates rail lines in the entire metropolitan area of Tokyo and in the rest of the northeastern part of Honshu. JR East is also responsible for Shinkansen high-speed rail lines. Two different organizations operate the subway network: the private Tokyo Metro and the governmental Tokyo Metropolitan Bureau of Transportation. The Metropolitan Government and private carriers operate bus routes and one Toden Arakawa Line, tram route. Local, regional, and national services are available, with major terminals at the giant railroad stations, including Tokyo Station, Tokyo, Shinagawa Station, Shinagawa, and Shinjuku Station, Shinjuku. Expressways link the capital to other points in the Greater Tokyo area, the Kantō region, and the islands of Kyushu and Shikoku. To build them quickly before the 1964 Summer Olympics, most were constructed above existing roads. Other transportation includes taxis operating in the special wards and the cities and towns. Also, long-distance ferries serve the islands of Tokyo and carry passengers and cargo to domestic and foreign ports.


Tokyo has many universities, junior colleges, and vocational schools. Many of Japan's most prestigious universities are in Tokyo, including University of Tokyo, Hitotsubashi University, Meiji University, Tokyo Institute of Technology, Waseda University, Tokyo University of Science, Sophia University, and Keio University. Some of the biggest List of national universities in Japan, national universities in Tokyo are: * Hitotsubashi University * National Graduate Institute for Policy Studies * Ochanomizu University * Tokyo Gakugei University * Tokyo Institute of Technology * Tokyo Medical and Dental University * Tokyo University of Agriculture and Technology * Tokyo University of Foreign Studies * Tokyo University of Marine Science and Technology * Tokyo University of the Arts * University of Electro-Communications * University of Tokyo There is only one non-national public university: Tokyo Metropolitan University. There are also a few universities well known for classes conducted in English and for the teaching of the Japanese language, including the Globis University Graduate School of Management, International Christian University, Sophia University, and Waseda University Tokyo is also the headquarters of the United Nations University. Publicly run kindergartens, elementary schools (years 1 through 6), and primary schools (7 through 9) are operated by local wards or municipal offices. Public secondary schools in Tokyo are run by the Tokyo Metropolitan Government Board of Education and are called "Metropolitan High Schools". Tokyo also has many private schools from kindergarten through high school:


Tokyo has many museums. In Ueno Park, there is the Tokyo National Museum, the country's largest museum and specializing in traditional Japanese art; the The National Museum of Western Art, National Museum of Western Art and Ueno Zoo. Other museums include the Miraikan, National Museum of Emerging Science and Innovation in Odaiba; the Edo-Tokyo Museum in Sumida, Tokyo, Sumida, across the Sumida River from the center of Tokyo; the Nezu Museum in Aoyama, Tokyo, Aoyama; and the National Diet Library, National Archives, and the National Museum of Modern Art, Tokyo, National Museum of Modern Art, which are near the Tokyo Imperial Palace, Imperial Palace. Tokyo has many theaters for performing arts. These include national and private theaters for traditional forms of Japanese drama. Noteworthy are the National Noh Theatre for noh and the Kabuki-za for Kabuki. Symphony orchestras and other musical organizations perform modern and traditional music. The New National Theatre Tokyo, New National Theater Tokyo in Shibuya is the national center for the performing arts, including opera, ballet, contemporary dance and drama. Tokyo also hosts modern Japanese and international pop, and rock music at venues ranging in size from intimate clubs to internationally known areas such as the Nippon Budokan. Many different Festivals in Tokyo, festivals occur throughout Tokyo. Major events include the Sannō at Hie Shrine, the Sanja at Asakusa Shrine, and the biennial Kanda Matsuri, Kanda Festivals. The last features a parade with elaborately decorated floats and thousands of people. Annually on the last Saturday of July, an enormous fireworks display over the Sumida River attracts over a million viewers. Once cherry blossoms bloom in spring, many residents gather in Ueno Park, Inokashira Park, and the Shinjuku Gyoen National Garden for picnics under the blossoms. Harajuku, a neighborhood in Shibuya, Tokyo, Shibuya, is known internationally for its youth style, fashion and cosplay. Cuisine in Tokyo is internationally acclaimed. In November 2007, Michelin guide, Michelin released their first guide for fine dining in Tokyo, awarding 191 stars in total, or about twice as many as Tokyo's nearest competitor, Paris. As of 2017, 227 restaurants in Tokyo have been awarded (92 in Paris). Twelve establishments were awarded the maximum of three stars (Paris has 10), 54 received two stars, and 161 earned one star.


Tokyo, with a diverse array of sports, is home to two professional baseball clubs, the Yomiuri Giants who play at the Tokyo Dome and Tokyo Yakult Swallows at Meiji-Jingu Stadium. The Japan Sumo Association is also headquartered in Tokyo at the Ryōgoku Kokugikan sumo arena where three official sumo tournaments are held annually (in January, May, and September). Association football, Football clubs in Tokyo include F.C. Tokyo and Tokyo Verdy, Tokyo Verdy 1969, both of which play at Ajinomoto Stadium in Chōfu, Tokyo, Chōfu, and FC Machida Zelvia at Nozuta Stadium in Machida, Tokyo, Machida. Basketball clubs include the Hitachi SunRockers, Toyota Alvark Tokyo and Tokyo Excellence. Tokyo hosted the 1964 Summer Olympics, thus becoming the first Asian city to host the Summer Olympic Games, Summer Games. The National Stadium, also known as the National Stadium (Tokyo, 1958), Olympic Stadium, was host to a number of international sporting events. In 2016, it was to be replaced by the Japan National Stadium, New National Stadium. With a number of world-class sports venues, Tokyo often hosts national and international sporting events such as basketball tournaments, women's volleyball tournaments, tennis tournaments, swim meets, marathons, rugby union and sevens rugby games, football, American football exhibition games, judo, and karate. Tokyo Metropolitan Gymnasium, in Sendagaya, Shibuya, is a large sports complex that includes swimming pools, training rooms, and a large indoor arena. According to Around the Rings, the gymnasium has played host to the October 2011 artistic gymnastics world championships, despite the International Gymnastics Federation's initial doubt in Tokyo's ability to host the championships following the March 11 tsunami. Tokyo was also selected to host a number of games for the 2019 Rugby World Cup, and to host the 2020 Summer Olympics and the 2020 Summer Paralympics, Paralympics on September 7, 2013.

In popular culture

As the largest population center in Japan and the site of the country's largest broadcasters and studios, Tokyo is frequently the setting for many Cinema of Japan, Japanese movies, television shows, animated series (''anime''), web comics, light novels, video games, and comic books (''manga''). In the ''kaiju'' (monster movie) genre, landmarks of Tokyo are usually destroyed by giant monsters such as Godzilla and Gamera. Some Hollywood directors have turned to Tokyo as a backdrop for movies set in Japan. Postwar examples include ''Tokyo Joe (1949 film), Tokyo Joe'', ''My Geisha'', ''Tokyo Story'' and the James Bond film ''You Only Live Twice (film), You Only Live Twice''; recent examples include ''Kill Bill'', ''The Fast and the Furious: Tokyo Drift'', ''Lost in Translation (film), Lost in Translation'', ''Babel (film), Babel'', ''Inception'', ''The Wolverine (2013 film), The Wolverine'' and ''Avengers: Endgame''. Japanese author Haruki Murakami has based some of his novels in Tokyo (including Norwegian Wood (novel), ''Norwegian Wood''), and David Mitchell (author), David Mitchell's first two novels ''number9dream'' and Ghostwritten (novel), ''Ghostwritten'' featured the city. Contemporary British painter Carl Randall spent 10 years living in Tokyo as an artist, creating a body of work depicting the city's crowded streets and public spaces.

International relations

Tokyo is the founding member of the Asian Network of Major Cities 21 and is a member of the Council of Local Authorities for International Relations. Tokyo was also a founding member of the C40 Cities Climate Leadership Group.

Sister cities and states

, Tokyo has Twin towns and sister cities, twinning or friendship agreements with the following sixteen cities and states: * New York City, United States (since February 1960) * Madrid, Spain (since April 1965) * Beijing, China (since March 1979) * Paris, France (since July 1982) * Sydney, Australia (since May 1984) * Seoul, South Korea (since September 1988) * Metro Manila, Philippines (since August 1989) * Jakarta, Indonesia (since October 1989) * São Paulo (state), São Paulo State, Brazil (since June 1990) * Cairo, Egypt (since October 1990) * Moscow, Russia (since July 1991) * Berlin, Germany (since May 1994) * Rome, Italy (since July 1996) * Istanbul, Turkey (since March 1998) * Delhi, India (since April 2002) * London, United Kingdom (since October 2015)

Friendship and cooperation agreements

* Tomsk Oblast, Russia (since May 2015) * Brussels, Belgium (since October 2016) * Mumbai, India (since November 2016) * Los Angeles, United States (since July 2018)

International academic and scientific research

Research and development in Japan and the Japanese space program are globally represented by several of Tokyo's medical and scientific facilities, including the University of Tokyo and other List of universities in Tokyo, universities in Tokyo, which work in collaboration with many international institutions. Especially with the United States, including NASA and the many private spaceflight companies, Tokyo universities have working relationships with all of the Ivy League institutions (including Harvard University, Harvard and Yale University), along with other research university, research universities and development laboratory, laboratories, such as Stanford University, Stanford, Massachusetts Institute of Technology, MIT, and the University of California, UC campuses throughout California, as well as University of New Mexico, UNM and Sandia National Laboratories in Albuquerque, New Mexico, Albuquerque, New Mexico. Other partners worldwide include Oxford University in the United Kingdom, the National University of Singapore in Singapore, the University of Toronto in Canada, and Tsinghua University in China.

See also

* List of cities proper by population * List of cities with the most skyscrapers * List of tallest structures in Tokyo * List of development projects in Tokyo * List of largest cities * List of metropolitan areas in Asia * List of most expensive cities for expatriate employees * List of urban agglomerations in Asia * List of urban areas by population * Megacity * Tokyo dialect * Yamanote and Shitamachi




* Fiévé, Nicolas and Paul Waley. (2003). ''Japanese Capitals in Historical Perspective: Place, Power and Memory in Kyoto, Edo and Tokyo''. London: RoutledgeCurzon. ; * McClain, James, John M Merriman and Kaoru Ugawa. (1994). ''Edo and Paris: Urban Life and the State in the Early Modern Era''. Ithaca: Cornell University Press. ; * Nussbaum, Louis-Frédéric and Käthe Roth. (2005)
''Japan encyclopedia''
Cambridge: Harvard University Press. ; * Sorensen, Andre. (2002). ''The Making of Urban Japan: Cities and Planning from Edo to the Twenty First Century''. London: RoutledgeCurzon. ;

Further reading


* Bender, Andrew, and Timothy N. Hornyak. ''Tokyo'' (City Travel Guide) (2010) * Mansfield, Stephen. ''Dk Eyewitness Top 10 Travel Guide: Tokyo'' (2013) * Waley, Paul. ''Tokyo Now and Then: An Explorer's Guide''. (1984). 592 pp * Yanagihara, Wendy. ''Lonely Planet Tokyo Encounter''


* Allinson, Gary D. ''Suburban Tokyo: A Comparative Study in Politics and Social Change''. (1979). 258 pp. * Bestor, Theodore. ''Neighbourhood Tokyo'' (1989)
online edition
* Bestor, Theodore. ''Tsukiji: The Fish Market at the Centre of the World''. (2004
online edition
* Fowler, Edward. ''San'ya Blues: Labouring Life in Contemporary Tokyo''. (1996) . * Friedman, Mildred, ed. ''Tokyo, Form and Spirit''. (1986). 256 pp. * Jinnai, Hidenobu. ''Tokyo: A Spatial Anthropology''. (1995). 236 pp. * Perez, Louis G. ''Tokyo: Geography, History, and Culture'' (ABC-CLIO, 2019). * Reynolds, Jonathan M. "Japan's Imperial Diet Building: Debate over Construction of a National Identity". ''Art Journal''. 55#3 (1996) pp. 38+. * Sassen, Saskia. ''The Global City: New York, London, Tokyo''. (1991). 397 pp. * Sorensen, A. ''Land Readjustment and Metropolitan Growth: An Examination of Suburban Land Development and Urban Sprawl in the Tokyo Metropolitan Area'' (2000)
Taira, J. ''[re
OKYO.'' (2018). San Francisco: ORO Editions.] * Waley, Paul. "Tokyo-as-world-city: Reassessing the Role of Capital and the State in Urban Restructuring". ''Urban Studies'' 2007 44(8): 1465–1490. Fulltext: Ebsco

External links

Tokyo Metropolis Official Website

Tokyo Metropolis Official Website

{{Authority control Tokyo, 1457 establishments in Asia 15th-century establishments in Japan Capitals in Asia Kantō region Populated coastal places in Japan Populated places established in the 1450s Port settlements in Japan