Guard at the Tomb of the Unknowns, Arlington National Cemetery, Virginia

Guard at the Tomb of the Unknowns, Arlington National Cemetery, Virginia

The Tomb of the Unknowns honors US service members who died in combat, but whose remains cannot be identified. When Arlington National Cemetery in Virginia is open to the public, anyone is welcome to visit the tomb and watch the somber changing of the guard. During the changing ceremony, officials ask only that those viewing the event remain "silent and standing" during the exchange.