Chicago is the birthplace of the skyscraper because it was home of the Home Insurance Building, completed in 1885, the world's first steel-framed skyscraper. Nowadays, it has 1,366 completed high-rises, 48 of which stand taller than 600 feet (183 m). The tallest building in the city is the 110-story Willis Tower (formerly the Sears Tower), which rises 1,451 feet (442 m) in the Chicago Loop and was completed in 1974.
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