Finished in 1943, the Pentagon is a symbol of U.S. military might. It's also one of the places attacked on 9/11.
Construction on the Pentagon started on Sept. 11, 1941, in the midst of World War II. The five-sided design was chosen to accommodate existing roads around the building's original site near Arlington National Cemetery; a different site was ultimately picked, but the design was kept, according to the History Channel.
Photo Courtesy: Mike Eliason / Santa Barbara Co. Fire Dept.
John Palminteri photo
Oscar Flores photo
Kevin Winter/Getty Images
Scott Olson/Getty Images
Milos Bicanski/Getty Images
iStock / rocksunderwater
Jason Merritt/Getty Images
Mark Metcalfe/Getty Images
Justin Sullivan/Getty Images
Higashiyama Zoo Botanical Garden
Sign up to get Breaking News, Daily Headlines, Severe Weather Alerts & more delivered straight to your e-mail inbox
No email address was supplied by
To complete your registration on this site, please supply an address.
Please confirm or modify the email address to which you will have subscription offers sent.
For a more personalized experience, please supply the following optional information.