Check out New York's World Trade Center site before and after the Sept. 11, 2001, attacks, and the memorial.
On the 12th anniversary of 9/11, take a look at New York's World Trade Center site before and after the Sept. 11, 2001, attacks.
Seoul National University/Handout/Reuters
Lucy Richardson/ Reuters
iStock / gbh007
National Portrait Gallery, London
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!