The Pentagon - Wikipedia
The Pentagon is the headquarters building of the United States Department of Defense, in Arlington County, Virginia, across the Potomac River from Washington, D.C. The building was constructed on an accelerated schedule during World War II.
10 Things You Probably Didn't Know About the Pentagon
Apr 16, 2024 · Why is the Pentagon actually a pentagon? And is it the biggest office building in the world? Find these answers and more in the 10 things you probably didn't know about the Pentagon.
Pentagon ‑ Location, Building Timeline, 9/11 - HISTORY
Dec 18, 2009 · The Pentagon is the Virginia headquarters of the U.S. Department of Defense, located in a massive five‑sided concrete and steel building that’s a potent symbol of America’s military strength.
Pentagon History: 7 Big Things to Know - U.S. Department of Defense
Dec 19, 2019 · The federal government confiscated it during the Civil War, but the building's concept and construction didn't happen until several decades later. Here's the rest, in a nutshell.
Pentagon | History & Features | Britannica
3 days ago · Pentagon, large five-sided building in Arlington county, Virginia, near Washington, D.C., that serves as the headquarters of the U.S. Department of Defense, including all three military services— Army, Navy, and Air Force. Constructed during 1941–43, the Pentagon was intended to consolidate the offices of the War Department, which had ...
Historical Office > DOD History > Pentagon > History
Pentagon History. Three buildings housing great institutions of the U.S. government have come to be regarded as national monuments and have become part of national and international history: the...
Construction of the Pentagon Was an Unprecedented Effort
Jun 12, 2024 · Construction began Sept. 11, with earthmoving and the casting of the first of an eventual 41,492 reinforced concrete piles. By mid-January 1942 there were 6,000 workers placing concrete slabs,...
Why Is the Pentagon a Pentagon? | Smithsonian
Apr 10, 2017 · Construction on the Pentagon was completed in January 1943. With about 6.4 million square feet, it is still today the world’s largest low-rise office building.
From the ashes: The Pentagon renovation | ASCE
Sep 1, 2021 · When terrorists flew Flight 77 into the Pentagon on the morning of Sept. 11, 2001, a massive renovation effort was already underway to bring the 60-year-old Pentagon — thought to be the world’s largest office building — up to date and …
Pentagon, The - Encyclopedia Virginia
Sep 11, 2001 · 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.