Willis Tower, formerly known as Sears Tower, stands at 1,450 feet tall in the heart of Chicago's Loop, making it one of the tallest buildings in the Western Hemisphere. Visitors can access the Skydeck to enjoy panoramic views of the city and Lake Michigan from 1,353 feet above ground, including the famous glass ledge. Opened in 1973, the tower attracts millions of tourists annually and offers a gift shop and snack bar for visitors. A must-see for first-time Chicago visitors, it also has historical significance as a focal point of the city's skyline.
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