When was the Pentagon renovated?

The Pentagon Renovation Program (PENREN) was a long-term project by the United States Department of Defense to perform a complete slab-to-slab renovation of the Pentagon in Arlington, Virginia. The program began in the 1990s, and was completed in June 2011.

How long did it take to build the Pentagon building?

Construction finished on Jan. 15, 1943, just 16 months after it started. Speed costs money, though: Initially budgeted at $35 million, the final cost was $63 million, more than $900 million in today's money. The same guy oversaw construction of the Pentagon and the atomic bomb.

How much did the Pentagon renovation cost?

I soon learned I had volunteered to take over management of the ongoing, more than $4 billion Pentagon Renovation Program, the largest design and construction program of its type in U.S. history.

Why is the Pentagon 5 sided?

The building was originally designed to fit onto a tract of land with borders on five sides. In the end, it was built elsewhere, at a site where a pentagonal shape was no longer essential. But by the time of this location change, it was too late to come up with a new design. So it remained a pentagon.

9/11 INSIDE THE PENTAGON | Coming September 6, 2016 | PBS

Can you tour the Pentagon?

U.S. citizens who would like to tour the Pentagon must register at least two weeks in advance and will require clearance to enter the Pentagon by the Pentagon Forces Protection Agency. Tours are scheduled on a first-come-first-serve basis.

How deep does the Pentagon go?

It was designed to withstand multiple direct hits of 200 to 300 Megaton weapons bursting at the surface or 100 MT weapons penetrating to depths of 70–100 feet.

What is in the middle of the Pentagon?

At the center of the Pentagon is a five-acre park that houses a now-closed hot dog stand. “Rumor has it that during the Cold War, the Russians never had any less than two missiles aimed at this hot dog stand,” DOD Communications Officer Brett Eaton told the Stars and Stripes in 2010.

Is the Pentagon the largest building in the world?

The Pentagon, the USA's Headquarters of the Department of Defense in Virginia, is the world's largest office building. With over 603 869m² of total floor - three times the size of the floor space of the Empire State Building in New York.

How many lightbulbs are in the Pentagon?

The Pentagon contains 16,250 light fixtures, which require 250 daily light bulbs changes.

How many rooms are in the Pentagon?

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.

When was the US Pentagon built?

Constructed during 1941–43, the Pentagon was intended to consolidate the offices of the War Department, which had occupied 17 separate facilities throughout Washington. Although President Franklin D.

How many acres is the Pentagon?

The Pentagon is a universal symbol of U.S. strength and security known around the world, but do you know the history behind it? The 1,100 acres of land on which the Pentagon sits was once part of the sprawling estate of Confederate Gen. Robert E. Lee.

Does the Pentagon have a basement?

Some 23,000 military and civilian employees, and another 3,000 non-defense support personnel, work in the Pentagon. It has five sides, five floors above ground, two basement levels, and five ring corridors per floor with a total of 17.5 mi (28.2 km) of corridors.

Is there a Taco Bell in the middle of the Pentagon?

Most people think of the Pentagon as a giant warplanning center. But the Pentagon is also a giant mall, complete with a Taco Bell, a nail salon, a Redbox DVD rental, a florist, a Best Buy and even a fancy supermarket.

Why is it called the Pentagon?

The government eventually evicted the occupants to make way for the Pentagon. The new plot of land did not have the same limitations as the previous five-sided site, but the architects stuck with the original pentagonal plan, noting the design's many advantages.

Is there a garden in the middle of the Pentagon?

The Pentagon courtyard is five acres of big trees and well-manicured lawns, a parklike setting that gives one the feeling of being in a town square. At the center is a snack bar, sometimes called the Ground Zero Cafe.

Why is there a hot dog stand in the middle of the Pentagon?

"They thought this was the Pentagon's most top secret meeting room, and the entire Pentagon was a large fortress built around this hot dog stand." Reportedly, by using satellite imagery, the Soviets could see groups of U.S. military officers entering and exiting the hot dog stand at about the same time every day.

Does a Pentagon have 360 degrees?

We know that each exterior angle is supplementary to the interior angle. Therefore, the sum of exterior angles of a polygon = n(360°/n). As, the number of sides in a pentagon is 5, n=5. Thus, the sum of exterior angles of a pentagon = 5(360°/5) = 360°.

Can you see the Pentagon from Arlington Cemetery?

This picture shows the pentagon from a high view from Arlington cemetery.

How thick are bunker walls?

The walls of your bunker also need to be at least 1-3 feet thick. If you're using metal sheets, make sure to add a layer of brick or concrete inside. If you're using concrete, make sure that the walls are thick and reinforced to add extra protection against explosive shockwaves and radiation.