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Your Location: World North America U.S.A. District of Columbia Washington United States Capitol

United States Capitol

Identification

United States Capitol
119523

Map

Structure in General

monumental hall
existing [completed]
brick
marble
applied masonry
neo-classicism

Usage

capitol (national)
governmental office museum

Facts

  • The United States Capitol was originally designed by Dr. William Thornton, an amateur architect, who submitted a plan in 1793 that won him $500 and a city lot.
  • The present Capitol was designed and constructed by Thomas U. Walter, 4th architect of the Capitol.
  • Today's cast iron dome at its greatest exterior measures 135 ft. 5 in., and is topped by the bronze Statue of Freedom that stands 19.5 ft. and weighs 14,985 lbs.
  • The capitol sits 88 feet above the Potomac River, and covers 175,170 square feet of area, or about 4 acres.
  • The building has around 540 rooms, 658 windows, and 850 doorways.
  • The capitol rotunda is 92' in diameter, and rises 180'-3" from the floor to the canopy. It contains 1.3 million cubic feet of space.
  • President George Washington laid the cornerstone for the building in 1793, during a Masonic ceremony.

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More Information

Location

Between Constitution & Independence Avenues at Pennsylvania Avenue
20515
U.S.A.

Technical Data

288.00 ft
288.00 ft
268.50 ft
751.34 ft
350.00 ft
3
2
1851
1863
1993
$11,500,000

Involved Companies

Architect:

Also recorded for this building:

facade supplier, landscape architect, MEP engineering, security system consultant, security system supplier

Features & Amenities

  • One of the city's famous buildings