Tokyo Metropolitan Government; Tokyo Metropolitan Government Office
Abbreviation of 東京都庁. Refers to the administrative body or the building itself.
都庁で働いている友達がいます。
I have a friend who works at the Tokyo Metropolitan Government.
都庁の展望台から富士山が見える。
You can see Mt. Fuji from the observation deck of the Tokyo Metropolitan Government Building.
He works at the Tokyo Metropolitan Government office.