Robert Harrington
The Pentagon
Designer and Year Built
The Pentagon was designed by George Edwin Bergstorm. It was built between the years of 1942 and 1943.
September 11 and Where it is Located
On September 11, there were terrorists attacked the Pentagon. They flew an airplane into one of the sides of the building. Where it is located is in Washington D.C.
About the Building
The Pentagon is a five story high building. It is also one of the world's largest offices. There is 3,700,000 feet of usable floor space. There are 67 acres of parking space. There can also be more than 10,000 cars parked there. They also trucked in 41,492 concrete piles. The height was limited to 77 feet 3.5 inches.
Things Added
They added a heliport in 1956. It includes the three military defenses Army, Navy, and the Air Force. There are more than 13,000 people that work there day and night. It includes a 5 acre 2 hectare central court.
Bibliography
"Pentagon". Britannica School. Encyclopoedia Britannica, Inc. 2014.
Pentagon. Photograph. Encyclopædia Britannica. Web. 14 Apr. 2014.
September 11 attacks. Photograph. Encyclopædia Britannica. Web. 15 Apr. 2014.
Pentagon. Photograph. Encyclopædia Britannica. Web. 15 Apr. 2014.
Defense, Department of: Pentagon. Photograph. Encyclopædia Britannica. Web. 15 Apr. 2014.