Reflection of other buildings on Sears Tower (Willis Tower).

The Sears Tower(now called Willis Tower) is a 108-story, skyscraper in Chicago, Illinois. At the time of its completion in 1973, it was the tallest building in the world, surpassing the World Trade Center towers in New York, and it held this rank for nearly 25 years. It's the tallest building in the United States.

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