Pentagon

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South of Arlington Cemetery is the Pentagon, the largest office building in the world and the headquarters of the US Department of Defense, the Army, Navy and Air Force. Outside the building is the Pentagon Memorial; 184 illuminated benches honor each person killed in the September 11, 2001, terrorist attack on the Pentagon. To get inside the building, you'll have to book a free guided one-hour tour on the website and provide appropriate photo ID. Make reservations 14 to 90 days in advance.

Nearby, you can spot the three soaring arcs of the Air Force Memorial.

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Nearby attractions

1. Pentagon Memorial

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At this tranquil memorial, 184 illuminated benches honor each man, woman and child killed in the September 11, 2001 terrorist attack on the Pentagon,…

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Overlooking the Pentagon and adjacent to Arlington National Cemetery, three graceful stainless-steel arcs soar 270ft into the air. This shimmering…

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