] The 2004 meters high Mega-City-Pyramid TRY 2004, is a
] partial answer to two important problems : with cities
] becoming more and more crowded and the environment
] suffering progressive damage, the time has come for the
] development of a megacity that functions in harmony with
] nature. So, the city proposed by the Shimizu Corp.'s
] engineers represents the ideal form of living for man in
] harmony with the earth

Saw something about this on the Discovery channel last night. This isn't a great link but gives the basic idea.

Japan building an arcology in Tokyo bay?!