December 17, 2006 Santiago Calatrava is known for his ability to create public landmarks on a grand scale. The world renowned Spanish architect and engineer has one of the most impressive bodies of work ever assembled including the Athens Olympic Sports Complex, the rebuilding of the World Trade Center Transport Hub, plus dozens of the most beautiful buildings in major cities around the world - airports, opera houses, bridges, train stations. Now Shelbourne Development Group has filed a final design for the Chicago Spire, with the City of Chicago. The Calatrava-designed Chicago Spire is 2,000-foot tall tower which will become the tallest residential building in the world if approved. It’s Calatrava’s second remarkable residential building.