Shimizu is not a first timer at proposing wild concepts of cities. In 2010 Shimizu proposed building a pyramid city that would house 100-foot skyscrapers and a population of up to a million people. Unlike the underwater city of Ocean Spiral, TRY 2004 didn't seem as viable and didn't receive much support. Designers at Shimizu wanted the skyscrapers to be suspended from giant tubes within the pyramid. They also wanted the tubes to contain power and utility supplies. On top of all that, the tubes would also have a transportation system that would help residents get to their offices, schools and homes.