Sky City 1000

Sky City 1000 is a visionary (i.e. not proposed/intended to be built) supertall skyscraper in the Tokyo metropolitan area, Japan announced in 1989 during the height of the Japanese asset price bubble. The plan consists of a building 1,000 metres (3,281 ft) tall and 400 m (1,312 ft) wide at the base, and a total floor area of 8 km (3.1 sq mi). The design, proposed in 1989 by Takenaka Corporation, would house between 35,000 and 36,000 full-time residents, as well as 100,000 workers. It comprises 14 concave dish-shaped "Space Plateaus" stacked one upon the other. The interior of the plateaus would contain greenspace, and on the edges, on the sides of the building, would be the apartments. Also included in the building would be offices,...