16 of 19: Shown in this combo image are two documentations of the before and after of the September 11, 2001, terrorist attack in New York City. (Top) New York's Empire State Building is illuminated at sunset in the colors of the British flag in honor of Princess Diana Thursday, Sept. 4, 1997. (Below) In a horrific sequence of destruction, terrorists crashed two planes into the World Trade Center causing the twin 110-story towers to collapse on Sept. 11, 2001. (AP Photo/ Michael Schmelling (Top), Marty Lederhandler (Bottom)) (Photo/Marty Lederhandler)

Share this gallery