The New Shimbashi Building is a somewhat low-rent shopping complex filled with small stores, retro cafés and smelly izakaya. More importantly, the floors are scattered with arcades that specialize in mahjong video games. Video mahjong addicts rarely bother going elsewhere for their fixes.

For mahjong newbies, the video version is a great way of getting up to speed before stepping into the highly competitive mahjong circuit, where big money is on the line. For those with the confidence to go face-to-face with human opponents, real mahjong parlors are also located in the New Shimbashi Building.

Mahjong-phobes can also have fun. The arcade Game Center Jumbo (tel. 03 3500 3371, 9:30am-12am) is dedicated to the horse racing simulator "Derby Owner's Club," which allows players to raise and race horses with eight other pretend stable barons.

New Shimbashi Building Amusement Hall: 2-16-1 Shimbashi, Minato-ku, tel. 03 3597 5678, 10am-12pm

Source: CNN