The Pentagon 3,460 recipients of the Medal of Honor, the United States' highest military decoration. The Hall is also used for promotions, retirements, and other ceremonies. Notes Bibliography The Pentagon The Pentagon, in Arlington County, Virginia, across the Potomac River from Washington, D.C., is the headquarters of the United States Department of Defense. As a symbol of the U.S. military, the phrase "The Pentagon" is often used as a metonym for the Department of Defense and its leadership. The building was designed by American architect George Bergstrom and built by contractor John McShain. Ground was broken on September 11, 1941, and the
United States Post Office (Arlington, Virginia) United States Post Office (Arlington, Virginia) US Post Office-Arlington is a historic post office building located in the Clarendon neighborhood of Arlington, Virginia. It was designed and built in 1937, and is one of a number of post offices designed by the Office of the Supervising Architect of the Treasury Department under Louis A. Simon. The building is a one-story, pentagonal shaped brick building in the Georgian Revival style. Atop the entrance portico is a dome that rises above the buildings flat roof and is supported by four fluted limestone piers. The interior features murals by Auriel Bessemer picturing Indians