Tokyo Metropolitan Government Building (東京都庁) 東京都庁
It was the tallest skyscraper in Japan until 1993. The observation decks, at 202 m, are free.
The two twin towers by Kenzō Tange in Nishi-Shinjuku.
Tokyo
Shinsen-Shinjuku, Shinjuku
Sword Art Online
One of the stops on the motorbike ride in which Kirito rechecks the places where the events happened in ‘Ordinal Scale’. The low-angle shot is the one you get from the citizens' plaza, between the main building and the metropolitan assembly; an overhead view of the same plaza also appears.
All the places from Sword Art Online
https://theanimetrip.com/luoghi/palazzo-del-governo-metropolitano-di-tokyo