The National Park Service and the Interior Department hosted an opening ceremony Thursday, Sept. 10, 2015, for the Flight 93 National Memorial near Shanksvill...
The walkways of the Flight 93 National Memorial include information about the Sept. 11, 2001, highjackings and terrorist attacks that began in New York City and ended in a field in Pennsylvania. (Tami A. Heilemann NPS)
The National Park Service and the Interior Department hosted an opening ceremony Thursday, Sept. 10, 2015, for the Flight 93 National Memorial near Shanksville, Pennsylvania.