New York's ground zero through time

Published On: Aug 23 2011 04:09:26 AM CDT   Updated On: Nov 14 2013 10:12:35 AM CST

Check out New York's World Trade Center site before and after the Sept. 11, 2001, attacks, and the memorial.

WTC 2001 9-11 Attack
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Sean Adair/Reuters

United Flight 175 flies toward the south tower of the World Trade Center in New York as the north tower burns after being hit by American Flight 11 a short time earlier, Sept. 11, 2001.

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