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The capital isn't the tallest building in the USA. The tallest building is currently the Sears Tower, in Chicago, Illinois. Though the Washington Monument in the capital was once the tallest building in the USA. The Washington Monument was (and still is) 555 ft, 5.1 in tall. The Washington Monument became the world's tallest building when it overtook the 515-foot-high Cologne Cathedral in Cologne, Germany. The Washington Monument was the world's tallest building for 6 years, from 1884 to 1889, when itself was overtaken by the 1,063-foot-high Eiffel Tower.

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13y ago

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