Attack on the U.S.
Hijackers crashed two airliners into the World Trade Center on September 11, 2001, toppling its twin 110-story towers in the most devastating terrorist attacks against the United States.

Victims & Heroes
September 11 created a new generation of heroes for America and the world. They came from diverse cultures and faraway lands, but on September 11, all were victims and each was a hero.

U.S. Recovery
A photo essay showing recovery efforts in the aftermath of the country's worst terrorist attack.

World Response
Tens of thousands of people attended a memorial ceremony in Ottawa, Canada, on September 14, 2001, for the victims of the terrorist attacks.

New York Memorial Service
Thousands attended a memorial service on September 23, 2001, at Yankee Stadium to remember those lost in the attacks.

New York City: Three Months After
Pictorial essays developed in December 2001 that capture the city's indomitable spirit.

Remembrances and Reflections of 9/11
In gatherings large and small, citizens in the United States and around the world recalled the second anniversary of the terrorist attacks of September 11, 2001.