Tokyo is the capital of Japan, and is located at the head of Tokyo Bay.

The metropolitan area surrounding the city is the world's most populous - home to more than 28 million people. Tokyo proper consists of an urban area divided into wards, a county area with farms and mountain villages, and the Izu Islands in Tokyo Bay.

Tokyo has one of the best subway systems in the world, as well as the world's first public monorail line, which runs between downtown Tokyo and nearby Haneda international airport.