Beams of light commemorate World Trade Centers.

100911-M-4003C-145
NEW YORK (Sept. 11, 2010) A light display shines from ground zero in New York. The two beams of light, representing the World Trade Centers, are illuminated each year on the anniversary of the Sept. 11, 2001 terrorist attacks. (U.S. Marine Corps photo by Sgt. Randall Clinton/Released)

100911-M-4003C-145
 NEW YORK (Sept. 11, 2010) A light display shines from ground zero in New York. The two beams of light, representing the World Trade Centers, are illuminated each year on the anniversary of the Sept. 11, 2001 terrorist attacks. (U.S. Marine Corps photo by Sgt. Randall Clinton/Released)