The National Park Service and the Interior Department hosted an opening ceremony Thursday, Sept. 10, 2015, for the Flight 93 National Memorial near Shanksvill...
A guide gives a tour of the Flight 93 Memorial Visitor Center. (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.