Also, don't pay to see Chi via the Sears Tower (don't you dare call it by any other name, lol) or the viewing room at the Hancock. Go up to the Signature lounge at the Hancock building, especially close to sunset, and see the city for free. They have yummy cocktails and excellent chocolate cake to dine on as you take in the beauty that is our City of Wind. Also, the view from the Woman's Washroom is the absolute very best view of the city (sorry gents!).