The Pentagon, located in Arlington, Virginia, is home to the Department of
Defense and serves as military headquarters for the United States. The enormous, 6.24-million-square-foot concrete structure is the largest
office building in the world, covering thirty-four acres. Built to house the burgeoning War Department on the eve of the United States' entry
into World War II (1939–1945), the headquarters was constructed in just seventeen months. From the moment Secretary of War Henry L. . . .
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