These buildings are incredible! Chicago has two buildings started that are truly unique.
"The phenomenal Chicago Spire, when completed in 2010, will be the world's tallest residential building and the tallest building of any kind in the western world. Seemingly modeled on the image of a giant drill poking through the ground, the 609m structure will dominate the Chicago skyline."
Here is the Spire's very impressive website. Be sure to look at the gallery and the panoramas.