Freedom Tower

A peak at the names around the north reflecting pool. (credit: Al Jones/CBSNewYork.com)

Freedom Tower

A view of the Freedom Tower complex. (credit: Al Jones/CBSNewYork.com)

Freedom Tower

The external staircase to the 70th floor of One World Trade Center. (credit: Al Jones/CBSNewYork.com)

Freedom Tower

Looking down at Seven World Trade Center from the 70th floor of One World Trade Center (credit: Al Jones/CBSNewYork.com)

View From Ground Zero

One World Trade Center is seen under construction from Chopper 880 - New York, NY - Jul 5, 2011 (credit: Tom Kaminski / WCBS 880)

View From Ground Zero

One World Trade Center is seen under construction from Chopper 880 - New York, NY - Jul 5, 2011 (credit: Tom Kaminski / WCBS 880)

View From Ground Zero

The 9/11 memorial under construction at Ground Zero as seen from Chopper 880 - New York, NY - Jul 5, 2011 (credit: Tom Kaminski / WCBS 880)

View From Ground Zero

One World Trade Center is seen under construction from Chopper 880 - New York, NY - Jul 5, 2011 (credit: Tom Kaminski / WCBS 880)

Freedom Tower

The lobby of One World Trade Center. (credit: Al Jones/CBSNewYork.com)

Freedom Tower

The walls and floors yet to be finished on the 70th floor of One World Trade Center (credit: Al Jones/CBSNewYork.com)