![](https://static.dezeen.com/uploads/2007/03/Santiago-Calatrava-in-Chicago.jpg)
Santiago Calatrava in Chicago
Santiago Calatrava has unveiled new designs for the Chicago Spire - a 150-storey condiminum tower proposed for Lake Shore Drive (via Archidose).
![Santiago Calatrava designs for the Chicago Spire](https://static.dezeen.com/uploads/2007/03/31.jpg)
The Spanish-born engineer unveiled his latest refinements to the controversial design in Chicago on Monday.
![Santiago Calatrava designs for the Chicago Spire](https://static.dezeen.com/uploads/2007/03/21.jpg)
If built, the 2,000ft tower will contain around 1300 luxury apartments. More on the tower in the Chicago Tribune.