It's easy to spend money in Chicago, what with shopping, museum entrance fees, restuarants, and theater, but if you would like to put your wallet away for a while here are a few options:
Every great city has great building, but Chicago is its great building. Chicago is framed by some of the most remarkable achitecture to be found anywhere. the best way to see the skyscraping Loop Towers or the Prairie School is to take the Chicago Architecture Tours.