Dare to Stand Out on The Ledge at Skydeck Chicago on the 103rd floor , with never before seen views, 1353 feet straight down. Atop the tallest building in the Western Hemisphere, Skydeck Chicago is a "one stop Chicago" experience featuring museum quality interactive exhibits, the fastest multi media elevator ride and new theater presentations highlighting the architecture and culture of Chicago. $15.95 adults, $11.00 youth. Children 3 and under free. Open daily. 9-10pm April - Oct; 10-8pm Oct - March. Multi language Audio Tours and maps available. Groups of 20 or more receive discounts with a free escort ticket.