In modern usage, a landmark includes anything that is easily recognizable, such as a monument, building, or other structure. In American English it is the main term used to designate places that might be of interest to tourists due to notable physical features or historical significance. Landmarks in the British English sense are often used for casual navigation, such as giving directions. This is done in American English as well.
In urban studies as well as in geography, a landmark is furthermore defined as an external point of reference that helps orienting in a familiar or unfamiliar environment. Landmarks are often used in verbal route instructions and as such an object of study by linguists as well as in other no fields of study.
Natural landmarks can be characteristic features, such as mountains or plateaus. Examples of natural landmarks are Table Mountain in South Africa, Mount Ararat in Turkey, Uluru in Australia, Mount Fuji in Japan and Grand Canyon in the United States. Trees might also serve as local landmarks, such as jubilee oaks or conifers. Some landmark trees may be nicknamed, examples being Queen's Oak, Hanging Oak or Centennial Tree.