In Japanese, Chuo means "center" but to tell the truth, the Tokyo district of about ten square kilometers is not that central in the capital.
It is known for being home of most residential, business or commercial districts: for that matter, we can find Tokyo stock exchange here in Nihonbashi, as well as the Bank of Japan.
The JR line with the same name cuts the Great Tokyo horizontally, in order to easily cross the city, from its main train station to Mitaka (local line/Sobu), up to Takao (rapid line) in the Western area.
Things to do in Chuo
Chuo by Kanpai community
Must see around: Tokyo attractions
Official website (in Japanese)
7 days = US$ 262
14 days = US$ 418