United Airlines Flight 93

United Airlines Flight 93 was a domestic passenger flight hijacked on September 11, 2001, by terrorists aiming to target government buildings in Washington, D.C. Passengers learned of the other attacks via phone calls and attempted to regain control of the plane. During the struggle, the terrorists crashed the aircraft into a field near Shanksville, Pennsylvania, before reaching their intended target. All onboard lost their lives, but their courageous actions likely prevented further devastation. The event is remembered as an example of bravery and sacrifice during a tragic day in American history.