The Tokyo government is headquartered in three large buildings west of Shinjuku or better known as “Tocho.” Completed in 1991, it is a monument to the excesses of Japan’s real estate bubble in the 1980s.
Main Building No. 1 is 243 meters (797 ft) high with 48 stories above and 3 stories below ground. Main Building No.2 is 163 meters (535 ft) high with 34 stories above and 3 stories below ground. The Assembly Building is 41 meters (135 ft) high with 7 stories above and 1 story below ground. Photo
Worth visiting are the North and South Observatories on the 45th floor of the Main Building No. 1. Below are the visiting days and times. Admission is free!
North Observatory — 9:30a.m.-11:00p.m.
South Observatory — 9:30a.m.-5:30p.m（when North Observatory is closed, open till 11:00p.m.）
*Last admittance — 30 minutes before closing time
North Observatory — the 2nd and 4th Monday of each month
South Observatory — the 1st and 3rd Tuesday of each month
*When a national holiday falls on an Observatory day off, the day off will be observed on the following day.
*Both Observatories are closed from December 29 to 31, January 2 and 3, and on TMG Building inspection days.
And of course, here is how to get there! Map of Tocho