The Pentagon
headquarters of the United States Department of Defense; named after the shape of the building, a polygon with five (greek: penta) sides
en-US/ðə ˈpɛntɪˌɡɑn/
en-GB/ðə ˈpɛntəɡən/
headquarters of the United States Department of Defense; named after the shape of the building, a polygon with five (greek: penta) sides