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.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
With Saturday marking 30 years since the debut of "The Cosby Show," join us for a look at the sitcom's stars are up to today.