I recently traveled to Chicago and HAD to visit the Sears Tower Skydeck. After all, it's the tallest building in the US. BUT, after purchasing the Chicago CityPass, I visited the John Hancock Building Observatory. The view is more spectacular than at Sears. ""Big John"" also has an outside terrace where you can feel the Chicago cold, as well as hear all the Chicago sounds. The best part is a 'take your own photo' set of Washing the Windows at Big John. My friends and I had a blast just acting silly. It was one of our favorite souvenirs of our Chicago trip.
When visiting definitely visit Big John!
Pros: inexpensive, history
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