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.

What is the purpose of the Pentagon?

One of the largest office buildings in the world, the Pentagon serves as the headquarters of the United States Department of Defense. A symbol of American military strength, the concrete and steel building is recognized around the world. Nearly 30,000 military and civilian personnel work inside the Pentagon each day.

How many rooms are in the Pentagon?

In the building you will find such rooms as a library with 300,000 volumes, 284 rooms for rest, 17 restaurants, 6 cafeterias and 8 fast-food bars. There are 23,000 employees at the Pentagon, with 16 car parks with a total area of ​​67 acres and 8,770 cars.