New York's ground zero through time

POSTED: 2:09 AM Aug 23 2011   UPDATED: 11:26 AM Nov 30 2014

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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Spencer Platt/Getty Images

One World Trade Center is officially open for business. Take a look at New York's World Trade Center site before and after the Sept. 11 attacks.

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