Architect: George Bergstrom
Location: Arlington County, Virginia
Construction: Start date – September 11, 1941 Completion date – January 15, 1943
Materials: To conserve steel, concrete ramps were used instead of elevators. The outside walls are made of reinforced concrete. The Pentagon was built in “stripped classical” style, this style is often used for government buildings
History: The Pentagon is the headquarters of the United States Department of Defense, located in Arlington County, Virginia. The Pentagon is often used metonymically when referring to the U.S. Department of Defense.
Purpose: The Pentagon houses the Department of Defense.