The Pentagon 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 building was dedicated on January 15, 1943. General Brehon Somervell provided the major motivating power behind the project; Colonel Leslie Groves was responsible for overseeing the
Glebe House (Arlington, Virginia) Glebe House (Arlington, Virginia) The Glebe House, built in 1854–1857, is a historic house with an octagon-shaped wing that is located at 4527 17th St., North in Arlington County, Virginia. The Northern Virginia Conservation Trust holds a conservation easement to help protect and preserve it. A historical marker that the Arlington County government erected near the house in 1969 states that the glebe was a farm that: ... provided for the rector of Fairfax Parish, which included both Christ Church, Alexandria, and the Falls Church. The Glebe House, built in 1775, stood here. It burned in 1808 and was rebuilt