This is a wall of the names of people who lost their lives in the terrorist attacks on Sept. 11, 2001 that are on display as part of the Flight 93 National Memorial Visitors Center Complex in Shanksville, Pennsylvania, on Wednesday, Sept. 9, 2015. The visitors center was formally dedicated and opened to the public on Sept. 10, 2015. (AP Photo/Gene J. Puskar)
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.