Smoke billows from the Pentagon Tuesday, Sept. 11, 2001, after it took a direct, devasating hit from an aircraft. The nerve center of the nation's military burst into flames and a portion of one side of the five-sided structure collapsed when the plane struck in midmorning. (AP Photo/Mandatory Credit, Will Morris)
Gallery: The Sept. 11, 2001, terrorist attacks
Sep. 10, 2011 @ 04:26 PM
On Tuesday, Sept. 11, terrorists hijacked airplanes and used them to destroy the Twin Towers in New York City and damage the Pentagon in Washington, D.C. One of the planes crashed in a field in rural Pennsylvania.
Excluding the 19 hijackers, the death toll stands at 2,998 with 24 more presumed dead,