The World Trade Center burns after terrorists attacked the iconic buildings on September 11, 2001. Minutes after this photo was taken the entire structure collapsed.
An American flag draped from the Bankers Trust building is seen though the shell of the World Trade Center 4.
People walking along a smoke-filled Wall Street make their way to work as the New York Stock Exchange reopens one week following the 9/11 attacks.
Leaflets of missing persons are posted by friends and family members who are seeking information about loved ones who may or may not have vanished in the twin towers.
A mother and son are among the victims' family members attending the inter-faith prayer service held at Yankee Stadium to honor those who lost their lives in the terrorist attack.
Construction workers attend a memorial service held at Ground Zero on the third month anniversary of the terrorist attack.