A must see when in Chicago. The only problem with this tourist attraction is that everybody wants to see the view from the observation deck. So waiting lines are very long. We had to wait 1 hour and 30 minutes before we could enter the theatre for an introduction movie. After that we could enter the observation deck.
The view is definitely worth the wait! For persons who are not afraid of heights, there is a special attraction: you can stand on the glass viewing platforms and look down at the city beneath you. A dizzying experience indeed.
Skydeck Chicago – Willis Tower, 233 S. Wacker Drive, Entrance on Jackson Blvd, Chicago, IL 60606-7147 (Formerly Sears Tower)
Visited August 2015. You can find my review about Skydeck Chicago – Willis Tower also on TripAdvisor.