World's LARGEST Office Building

U.S Pentagon is the world's LARGEST Office Building!! 

•   Pentagone Building looks like a Geomatric shape called Pentagone, which has 5 angles

• U.S initially budgeted at $35 million, but wound up costing $63 million, more than $900 today’s money

• On January 15, 1943, work completed on the new headquarters for the U.S. War Department in Arlington, Virginia.

• Pentagon was built to accommodate nearly 30,000 defense workers tasked with helping America Win WWII.

• More than 17 miles of corridors

                                                                    

source: “Pentagon.” 2013. The History Channel website. Jun 24 2013, 11:25 http://www.history.com/topics/pentagon.