Photo Gallery: The Decade's Most Powerful Images 10/27/2009
 By the end of the day, all that was left of the Twin Towers was a pile of...
REUTERS

By the end of the day, all that was left of the Twin Towers was a pile of rubble. Thousands in New York and Washinton D.C. were killed in the attack in addition to the passengers on the planes that had been turned into missiles.