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The Willis Tower, originally and still commonly referred to as the Sears Tower, is a 110-story, 1,451-foot (442.3 m) skyscraper in the Loop community area of Chicago in Illinois, United States.
Experience the thrill of standing on The Ledge, a glass-floor observation box 1,353 feet above Chicago. Explore the interactive museum, the tower's history and design, and the stunning views from the 103rd floor.
6 days ago · Willis Tower, skyscraper office building in Chicago, Illinois, located at 233 South Wacker Drive, that is one of the world’s tallest buildings. The Sears Tower opened to tenants in 1973, though construction was not actually completed until 1974.
Learn about the origins, design and transformation of Willis Tower, the tallest building in Chicago and a former Sears headquarters. Explore the Skydeck Chicago observatory, the highest in the US, with The Ledge, a museum and a marketplace.