The Chicago Spire is a supertall skyscraper under construction in Chicago, Illinois. The skyscraper will stand taller than Chicago's Sears Tower and New York's upcoming Freedom Tower, as well as Toronto's CN Tower, to become North America's tallest free-standing structure and the world's tallest all-residential building. The building was designed by Spanish architect Santiago Calatrava and is being developed by Garrett Kelleher of Shelbourne Development Group, Inc. The Chicago Spire is scheduled to be completed in 2011 with 150 floors. Originally announced in July of 2005 by Christopher T. Carley of the Fordham Company, the project was supported by many Chicagoans and city officials. After several months of development, Carley failed to acquire necessary financing and the project was taken over by Garrett Kelleher of the Shelbourne Development Group. Since that time, three major revisions were made to the design.This is an improved model of kiyardo. I added a more realistic facade and changed the entrance. It's closer to the renders.