The "Survivors' Stairway," a key escape route for the hundreds of people fleeing the World Trade Center during the time of the attacks, is among the artifacts on display.
9/11's "falling man photograph"
World Trade Center Jumpers- I have never forgotten.
A very rare photo of the Pentagon on 9/11 at Washington, D.C.
Firefighters and rescue workers worked 24/7 to save lives in lower Manhattan. More than 300 firefighters - in some cases, entire stations - were killed in the collapse of the World Trade Center.
Graphics and images are © The Washington Post. Click on the graphics for a larger image. On September 11, 2001 terrorists attack the World Trade Center towers in New York City.
THE 9/11 CROSS Victims would rather jump than bear the intense Heat and Smoke. #WorldTradeCenter Twin Towers