On the morning of September 11, 2001, 19 men hijacked four U.S. commercial airplanes that had taken off with full fuel tanks for the West Coast. The hijackers deliberately crashed the planes into the Twin Towers of the World Trade Center, the Pentagon and onto a field outside of Shanksville, Pennsylvania. The losses were devastating: A total of 2,977 people were killed in New York City, Washington, D.C. and Pennsylvania.
Watch HISTORY videos below about the devastating attacks on that day and the aftermath.
Remembering 9/11: The Photo Archive
A photographer documents the efforts of Ground Zero workers in the days after September 11th. Part of the Emmy Award winning web series "Remembering 9/11":
9/11 Timeline
A timeline of the events on September 11, 2001:
Remembering 9/11: The Elevator Motor
One man spends his life maintaining the elevators that will one day save the life of another. Part of the Emmy Award winning web series "Remembering 9/11":
The 9/11 Flag: Lost and Found
Shirley Dreifus, owner of the now-iconic flag raised at Ground Zero on September 11, 2001, tells the incredible story of the flag's role in the recovery, its disappearance and the search to find it again.
Remembering 9/11: The Ground Zero Cross
Out of the rubble of the World Trade Center rose a symbol of hope for many in the days after 9/11. Part of the Emmy Award winning web series "Remembering 9/11":
Remembering 9/11: Karyn's Wings
A pair of wings took flight from Arkansas to Afghanistan and carried with them the love of a mourning father. Part of the Emmy Award winning web series "Remembering 9/11":
Remembering 9/11: Pentagon Employee Bruce Powers
Bruce Powers, a volunteer at the 9/11 Tribute Center and Pentagon employee more than 16 years, reflects on the events of attack on the Pentagon:
The 9/11 Survivor Tree
In the aftermath of the September 11, 2001 attacks, a callery pear tree emerged from the rubble. It now stands at Ground Zero as a symbol of hope:
