A city, in popular use of the term, is a large and important built-up area of housing, amenities, local government and so on, which is larger than a town. Alternatively, it is any area which has been accorded the status of a city. The capital of a country is often, but not always, a city, reflecting the importance of city status. Cities around the world may be large (for example, Mexico City; Seoul) small (e.g. City of London, part of the much larger London area), or actually comprise smaller cities that have grown together, such that the region is regarded as a single city (e.g. Tokyo).