Millenium tower Imagine a skyscraper almost twice the size of the Empire State Building. This colossus would be a city within a city, hosting its own hospitals, schools, and a range of entertainment and retail options large enough to attract and keep the traffic necessary for the financial success of such an endeavor. 840m high, the Millenium Tower in Tokyo will be almost twice the height of Chicago's Sears Tower, currently the world's tallest building. The...