The Extreem Engineering series from Discovery Channel showing of the Japanese Corporation, Shimizu, dreaming about the future of urban living: The Mega City in Pyramid, what a sophisticated structure and technology. The pyramid is 3000-foot-tall (914 meters) and built from hundreds of pyramid module that located offshore right in the middle of Tokyo bay. In the pyramid there are two dozens of 80-storey skyscraper constructed and linked with continuous transportation networks, it is said as a revolutionary urban environment. The network linked by 86 miles (138 kilometer) horizontal and diagonal aerial tunnel and meet at 55 node as transit system. It is a complete city and if built will be the largest structure on earth and the first offshore city ever built.