Parliament of Romania, Bucharest
Also known as Palace of Parliament, this imposing building is the 2nd largest administrative building in the world. The Palace has a height of 84 metres, a floor area of 365,000 square metres, and a volume of 2,550,000 cubic metres (Wikipedia). Of its 1,100 rooms, only about 400 are in use. A tour of the parliament is 4 hours long. Photo by The Wanderer