The Sky Deck sits atop Willis Tower in downtown Chicago at 1,353 feet in elevation.  Formerly known as the Sears Tower, the experience offers spectacular views spanning up to four states. It is a one-stop Chicago experience full of interactive exhibits and The Ledge, a glass balcony that extends four feet outside the 103rd floor of the uppermost floors. Visitors will also uncover the best of what Chicago offers when visiting “Reach For The Sky,” a museum-quality collection of exhibits combined with a special theater presentation.