Tokyo International Forum was built on the site of the Old City Hall, the former government headquarters which was relocated to the Tokyo Metropolitan Government Building in Nishi-Shinjuku.

In addition to seven other halls, it includes exhibition space, a lobby, restaurants, shops, and other facilities.

Designed by architect Rafael Viñoly and completed in 1996, it features swooping curves of steel truss and glass; the outside is shaped like an elongated boat.

On the first floor, facing in the direction of Edo Castle (now the Imperial Palace), is a bronze sculpture of Ōta Dōkan.

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