Officials are investigating the cause of the fire. Smoke rises in the background as firefighters respond to a fire at the Flight 93 National Memorial headquarters, Oct. 3, 2014, in Shanksville, Pa ...

This site preserves the crash site of Flight 93 commemorates the passengers and crew who, on September 11, 2001, gave their lives to thwart a planned attack on the nation's capital. Visitors can learn ...