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
Streets and highways of Arlington County, Virginia Streets and highways of Arlington County, Virginia This article deals with the streets and highways of Arlington County, Virginia, a suburb of Washington, D.C. in the United States. In 2009, the county maintains of roads. , the total mileage of (primary) state highways in Arlington County was 39.66 (59 km). Arlington County is one of only two counties in Virginia which maintain its own roads (with the exception of primary state highways, including U.S. Highways and Interstates), the other being Henrico County outside the State Capital of Richmond. Because of this special status, there are no secondary state roads and,