Mass murders in New York City

The September 11 attacks, colloquially known as 9/11, were a coordinated series of suicide attacks perpetrated by the Islamist terrorist organization al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four airliners, then flew one into each of the Twin Towers at the World Trade Center in New York City. The third plane crashed into the Pentagon, the headquarters of the United States Department of Defense, in Arlington County, Virginia. The fourth plane crashed in a rural Pennsylvania field during a passenger revolt. In response to the attacks, the United States launched the global war on terror, seeking to eliminate hostile groups deemed terrorist organizations, and the governments purported to support them. This foreign policy agenda was conducted over the next two decades.

9/11 hijacked passenger flight, hit the North Tower of the World Trade Center

9/11 hijacked passenger flight, hit the South Tower of the World Trade Center

truck bomb detonated below the North Tower of the World Trade Center in New York City

vehicle-ramming attack in New York City on October 31, 2017

1863 civil unrest over American Civil War conscription

munitions explosion via sabotage

1990 arson fire in Bronx, New York