Among the features of the Flight 93 memorial is the Wall of Names, which displays the names of the all 40 of the passengers and crew aboard the flight. Flight 93, of course, was the only one of four planes used during the September 11 terrorist attacks to not reach its target - the U.S. Capitol. A mutiny set in motion by a group of brave passengers against the terrorists commandeering the plane led to the terrorists crashing the plane rather than risk being overtaken by the passengers.
The Flight 93 National Memorial opens to the public on September 12, 2011. Admission is free.