Pentagon in Washington (USA) - headquarters of US Department of Defense

Where is located Pentagon?

Address of Pentagon is Washington, D.C., USA
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When was built Pentagon?

Built date of Pentagon is September 11, 1941 - the beginning of construction
January 15, 1943 - opening day

Facts, informations and history of Pentagon

Pentagon is the largest office in the world. Its floor area is three times larger than the floor area in the Empire State Building . Capitol, on the other hand, would fit in any of the five parts of the Pentagon.

Each of the five sides of the building has 280,728 meters.

The whole complex includes: the main building, numerous parking lots, 30 miles of streets and 21 bridges.

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.

Up to 87,000 cables have been used for installed 87,000 km of cables. 200,000 conversations are conducted every day. Special mail supports 1,200,000 letters a month.

Despite 17.5 miles of corridors, the transition between any two rooms takes no more than seven minutes. The building has 131 stairs, 19 escalators and 13 lifts.

680,000 tons of sand and gravel were used to build the facility, 4,200,000 m² land and 332,000 m² concrete. 41 492 concrete piles were driven into the foundations.

On the five floors of the building there are 7 754 windows, 672 fire extinguishers, 16 250 lighting devices, 691 drinking fountains and 4,200 watches.

In the secretary of defense room there is the largest desk in the Pentagon, on the desk there are three telephones, white - with a direct connection to the White House, red - for talks with Russia and commando staging places, blue - to communicate with the most important people in the building.

The secretary of defense cabinet combines one elevator with an underground operating room, where reports from around the world arrive, here is the command center of the largest defense organization in the world.

How many meters have Pentagon?

Height of Pentagon is 32 meters (77 feet and 3.5 inches)

Construction/building type

Building Pentagon is of type Government building, Office

Other dimensions, parameters and frequently asked questions

What area have Pentagon?

Pentagon have area of 29 acres - building area
344 194 m² - office space
583 acres - total area

What material is the building made of?

Pentagon is made of the following materials: Concrete, stone

Cost

Build cost of Pentagon is 49 600 000 dollars - the cost of the building; 83 million dollars - the cost of the entire project

Official website

The official website of the building, where up-to-date information can be found, is http://www.defense.gov