Architectural Buildings
The Palace of the Parliament, also known as the Republic's House or People's House/People's Palace, is the seat of the Parliament of Romania, located atop Dealul Spirii in Bucharest, the national capital. The Palace reaches a height of 84 m (276 ft), has a floor area of 365,000 m2 (3,930,000 sq ft) and a volume of 2,550,000 m3 (90,000,000 cu ft). The Palace of the Parliament is the heaviest building in the world, weighing about 4,098,500,000 kilograms, also being the second largest administrative building in the world. — Wikipedia