When did twin towers fall?
The Twin Towers in New York City collapsed after being targeted as part of a series of four coordinated terrorist attacks perpetrated by al-Queda on Tuesday, September 11th, 2001.
11th of September 2001. The twin towers were hit by two planes. Building 7 fell and the pentagon was also said to be hit by a plane.
September 11, 2001
Join Alexa Answers
Help make Alexa smarter and share your knowledge with the worldLEARN MORE