The Tokyo Metropolitan Government Building (東京都庁舎 Tōkyō-to Chōsha), also referred to as Tochō (都庁) for short, houses the headquarters of the Tokyo Metropolitan Government, which governs the 23 wards of Tokyo, as well as the cities, towns and villages that constitutes the whole Tokyo Metropolis.
Located in Shinjuku, the building was designed by architect Kenzo Tange. It consists of a complex of three structures, each taking up a city block. The tallest of the three is Tokyo Metropolitan Main building No.1, a tower 48 stories tall that splits into two sections at the 33rd floor. The building also has three levels below ground. The design of the building was meant to resemble a computer chip, while also evoking the look of a Gothic cathedral.
The other two buildings in the complex are the eight-story Tokyo Metropolitan Assembly Building (including one underground floor) and Tokyo Metropolitan Main Building No.2, which has 37 stories including three below ground.
The observation decks are open between 9:30 - 23:00, but the two observation decks alternate the dates they are open. 
The building was designed by Kenzo Tange and finished in December 1990 at the expense of ¥157 billion (about US$ 1 billion) of public money. It replaced the former Tokyo Metropolitan Government Building at Yūrakuchō, which was built in 1957 and also design by Tange. The former Tokyo Metropolitan Government Building is now the site of the Tokyo International Forum.
Though it has not gained the same degree of worldwide recognition as Tokyo Tower or Tokyo Skytree, the Metropolitan Government Building has come to represent the city in its own right. It frequently appears in Japanese science fiction and anime such as Digimon Tamers as a symbol of authority or in type scenes depicting a futuristic or post-apocalyptic Shinjuku. The building made its first major appearance in the 1991 Godzilla film Godzilla vs. King Ghidorah, where it appears in the first part of the film's climactic battle between Godzilla and Mecha-King Ghidorah. The two monsters fight at the foot of the skyscraper, with Godzilla eventually crashing through the building's midsection.
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|Tallest building in Japan
243 m (797 ft)
Yokohama Landmark Tower
|Tallest building in Tokyo
243 m (797 ft)