September 11 attacks
Top row: The Twin Towers of the World Trade Center burning 2nd row, left to right: Collapsed section of the Pentagon; Flight 175 crashes into 2 WTC 3rd row, left to right: A firefighter requests assistance at World Trade Center site; Ground Zero; An engine from Flight 93 is recovered Bottom row: Flight 77's collision with the Pentagon as captured by three consecutive CCTV frames
Location	Manhattan, New York, U.S.; Arlington County, Virginia, U.S.; Stonycreek Township near Shanksville, Pennsylvania, U.S.
Date	September 11, 2001; 22 years ago (2001-09-11) 8:46 – 10:28 a.m. (EDT)
Attack type	Aircraft hijackings Suicide attacks Mass murder Terrorism
Deaths	2,996 (2,977 victims + 19 hijackers)
Injured	6,000+
Perpetrator(s)	Al-Qaeda (see also responsibility and hijackers)

Flight paths of the 4 planes

The September 11 attacks (also known as 9/11)^{[nb 1]} were four terrorist attacks carried out by al-Qaeda against the United States of America. All the attacks happened on the morning of Tuesday, September 11, 2001. The attacks killed almost 3,000 people, including the 19 attackers, making it the deadliest terrorist attack of the 21st century. They caused more than $10 billion in damage to infrastructure. The terrorists took control of 4 passenger airplanes to destroy 2 famous buildings, the Twin Towers and part of the Pentagon, by flying the planes into them. There were two attacks in New York City and one in Arlington, Virginia. The fourth attack, aimed at Washington, D.C. did not work and the plane crashed in a field near Shanksville, Pennsylvania.