Keywords: Drew 004SQ RAW.jpg en The south tower of New York's World Trade Center collapses Tuesday Sept 11 2001 In one of the most horrifying attacks ever against the United States terrorists crashed two airliners into the World Trade Center in a deadly series of blows that brought down the twin 110-story towers AP Photo/Richard Drew 2001-09-11 https //archive org/details/NIST_9-11_Release_33 http //creativecommons org/publicdomain/mark/1 0/ NIST International Center for 9/11 Studies other versions PD-USGov World Trade Center on 9/11 Photographs taken on 2001-09-11 |