Unforgettable images from 9/11

Published On: Sep 10 2013 01:19:57 PM CDT   Updated On: Sep 11 2014 01:00:00 AM CDT

Look back at some of the many unforgettable images from the day America was attacked on 9/11.

9-11 - Pentagon on Fire
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Larry Downing/Reuters

At 9:37 a.m., five hijackers flew American Airlines Flight 77 into the Pentagon. Here, a rescue helicopter surveys damage as firefighters try to battle the intense flames.

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