The Pentagon
headquarters of the United States Department of Defense; named after the shape of the building, a polygon with five (greek: penta) sidesThe Pentagon is the headquarters of the United States Department of Defense. It is in Arlington, Virginia. It has limestone walls. It is in the shape of a pentagon, and has seven floors.
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Nearby Places

Vietnam Veterans Memorial
national memorial in Washington, D.C., United States

United States Department of Defense
executive department of the United States federal government

Lincoln Memorial
memorial in Washington, D.C., United States

Arlington National Cemetery
national cemetery in Virginia, United States

Ronald Reagan Washington National Airport
airport in Arlington County, Virginia, near Washington, D.C., United States

Arlington Memorial Amphitheater
outdoor amphitheater, exhibit hall, and nonsectarian chapel located in Arlington National Cemetery in Arlington, Virginia, United States

Netherlands Carillon
carillon gifted to the people of the United States from the people of the Netherlands

Air Florida Flight 90
flight that crashed in 1982 near Washington (D.C.) National Airport