Tokyo is Japan’s capital and the world’s most populous metropolis. It is also one of Japan’s 47 prefectures, consisting of 23 central city wards and multiple cities, towns and villages west of the city center. Foreigners interested in living in Tokyo may be glad to hear that medical standards in Japan are very high. Using the National Health Insurance scheme, many medical procedures in Japan are far cheaper.If you’re looking for a sustainable way to travel around Japan’s capital, public transport, including the metro, is your best bet. It enables you to quickly reach any location in the city. Tickets are available with the Tokyo Metro Pass: 24, 48 and 72-Hour Options and are valid for the Tokyo metro and Toei Subway.