Skydeck Chicago whisks visitors up to the 103rd floor of Willis Tower, the tallest building in the Western Hemisphere, for incredible views from 1,353 feet above the city. On the way up, interactive touchscreens and a nine-minute movie about Chicago architecture fill noggins with cloud-scratching trivia and inside info about the historic tower. From the deck, ocular orbs can spy city landmarks such as Soldier Field, the Shedd Aquarium, and Navy Pier. Far-sighted pupils can glimpse up to four states or spot sailboats playing badminton near the marina on Lake Michigan. The Ledge—a collection of four transparent boxes with only 1.5 inches of glass separating you from Wacker Drive 103 floors below—offers brave visitors unobstructed views of the city streets, as well as the spine-shivering sensation of walking on air. Visitors descend back to earth armed with unique snapshots of magnificent views and lifelong memories of the seemingly small city when viewed from such great heights.