One of the photographs of the Twin Towers taken by professional photographer Bill Biggart who died when the North Tower collapsed on him. His photographs were recovered from his camera which was found at the site.
NEW YORK - SEPTEMBER Remnants of a New York City Fire Department vehicle lie in the wreckage of the World Trade Center, two days after the twin towers were destroyed after being hit by two hijacked passenger jets, September 2001 in New York City.
An American flag flies in the foreground as one of the World Trade Center towers burns in the background 11 September 2001 in New York. Two hijacked airplanes crashed into the two landmark skyscrapers.