The nation changed forever on September 11, 2001. Many Americans remember a country before and a country after, and for many young Americans, only a country after. For months following September 11, people came together to grieve family, friends, and strangers. More than 20 years later, we still do, as September 11 has become an annual day for many Americans to remember, reflect, honor, and mourn. The Flight 93 National Memorial commemorates the crash of United Airlines Flight 93, which was one of four aircraft hijacked on September 11. The memorial, located in Somerset County, Pennsylvania includes the Tower of Voices, a 93-foot tall tower built to commemorate the 40 passengers with one wind chime for each. Image 1: The Tower of Voices flight93_nps Image 2: The Wall of Names, with forty inscribed white marble panels, honors the passengers and crew. DOI/Tami Heilemann #september11 #memorial #pennsylvania #flight93 #onthisday