America's Tallest Observation Deck is in IllinoisAmerica's Tallest Observation Deck is in IllinoisFor the record, I don't believe I have ever done this, surprising as it might be.Sweet LennySweet Lenny
Chicago's Willis Tower SkyDeck Cracks Under Visitors Feet Chicago's Willis Tower SkyDeck Cracks Under Visitors Feet Talk about a scary day in the Windy City! StephanieStephanie
