Nobody knows the future would be all industrial and machine-like buildings, or organic architecture flowing everywhere without destroying the environment, or even a combination of both. But we hope we can survive and have a better life in the over urbanized society. Thus, the Reverse Metropolis becomes a museum exhibits architectures designed for the “future”. The way light weight structure hold up heavy and squeeze into the gaps between the high- rise might be a way to solve the living problem. It located under an already built city, over a city still being built at that time. So when people look out from the museum, they observe the construction process of a city, have more expectations on the future life.