New York's ground zero through time

Published On: Aug 23 2011 04:09:26 AM CDT   Updated On: Nov 03 2014 09:20:36 AM CST

One World Trade Center is officially open for business. Take a look at the World Trade Center site through time, from the construction of the Twin Towers to the opening of the new centerpiece on the site.

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Mike Segar/Reuters

The memorial plaza with the north and south pool waterfalls are seen through a window in the One World Trade Center tower on July 28, 2011.

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