Shimizu Mega-City Pyramid
The Shimizu Mega-City Pyramid is a proposed pyramid shaped arcology that would be 2004 metres (2194 yards or 6,575ft ) tall. The geodesic pyramid would have the same proportions as the Great Pyramid of Giza, but unlike the Great Pyramid, would not be enclosed. Instead, each truss in the superstructure would hold a skyscraper.