AmericaJR’s Cory Martin recently visited Skydeck Chicago & The Ledgeat Chicago’s Willis Tower (formerly known as the Sears Tower). Offering spectacular views spanning up to four states, Skydeck Chicago is a one-stop Chicago experience full of interactive exhibits and…The Ledge, a glass balcony extending four feet outside the 103rd floor of Willis Tower! Step outside the tallest building in the Western Hemisphere. At 1,353 feet in the air, the Ledge’s glass boxes extend out 4.3 feet from the Skydeck. Discover the best of Chicago with our museum-quality exhibits and theater presentation, Reaching For The Sky, on your way to the 103rd floor Skydeck.