How big is the DC Capitol building?

Today, the U.S. Capitol covers a ground area of 175,170 square feet, or about 4 acres, and has a floor area of approximately 16-1/2 acres. Its length, from north to south, is 751 feet 4 inches; its greatest width, including approaches, is 350 feet.

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How tall are the buildings in Washington DC?

Tallest buildingsRankNameHeight ft (m)1Basilica of the National Shrine of the Immaculate Conception329 (100)2Trump International Hotel (Old Post Office Pavilion)315 (96)3Washington National Cathedral301 (92)4United States Capitol289 (88)