10 facts about the Pentagon you most likely didn't know.

   The Pentagon is one of the most famous buildings in the world. This status will not easily get if you can not boast of a few interesting facts and doesn't know most people. Well, the Pentagon these facts can boast of. So...

1. When construction is not implied that the building will be used as the headquarters of the Ministry of defense.

U.S. President Franklin Roosevelt never planned to use the Pentagon as the headquarters of the Ministry of defence. In the 1930s, he ordered the construction of another building for the military and naval departments, but it quickly became too small for such scales. It was then that the President and ordered to construct a new building to accommodate 40 000 employees and 10 000 vehicles. Now in the old war Department is the Department of state.

   2. The Pentagon more than the Empire state building. 

Total office area of the Pentagon — 473 805 sq m, which is nearly two times larger than the Empire state building in new York.

3. The Pentagon is built on the "Day of hell".

The Pentagon was built on the site of a poor black quarter called "the Bottom of hell." Here after the Civil war, former slaves settled. The area was considered a kind of red light district.

4. During the cold war, the Pentagon was given the nickname "Hub".

Long before the September 11 attacks, after which the English word Ground Zero became known as the twin towers, the so-called Pentagon. It was assumed that if a nuclear war with the USSR will begin, the first missile hit the Pentagon.

5. 17.5 miles.

   Walk around the Pentagon itself is a great way to lose a few pounds. Just in the Pentagon corridors 17.5 miles (28 km). In General, this building is a labyrinth. They say that General Eisenhower once got lost trying to find his office.

6. Renovation.

Since the Pentagon opened its doors in 1943, he survived only one renovation. It took 17 years and finished it in 2011. Fortunately, it took only 4.5 billion dollars. Not bad, huh?

7. The height of five floors.

At the Pentagon a total of 5 floors. It was intended to save the steel for the Second world war, which had been used during the construction of the building. The designers also didn't want to ruin the view of the Capitol across the Potomac river.

8. Without elevators.

                        X-47B testing on USS T.Roosevelt

Any special requirements for the layout of the apparatus was not presented. Primarily a perspective of the UAV will be used for reconnaissance, surveillance and reconnaissance, as well as to conduct precision strikes against various ground targets. With the possibility of drones needs to be expanded by implementing a modular design. If necessary the UAV can be easily supplemented with a variety of systems relay signals, the means of electronic warfare or specialized reconnaissance equipment. In March 2013 the U.S.

   The Pentagon has no lifts. Moving between the floors of stairs. It was also done because of the economy began during the Second world war.

9. Completed in record time.

The Pentagon is so big that it is hard to believe that its construction could be completed quickly. But it's true. General Leslie R. groves supervised the construction of the Pentagon and coped with its task in just 2 years.

10. Many toilets.

Now the Pentagon twice more toilets than you need. And all because it was built during the time of segregation, when needed, separate restrooms for black and white employees.