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The skyscraper, known by its 875 N. Michigan Ave. address, was built as the John Hancock Center in 1969. At 1499 feet, 875 N. Michigan Ave. Measuring 44 feet longer than the Empire State Building, which debuted on the city's skyline in 1931. The tallest building in the world is the Burj Khalifa Tower in Dubai. It measures 2717 feet.
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