Freedom Tower: 1 World Trade Center's Year by Year Progress

2006 A model of the Freedom Tower on display at the American Institute of Architects (AIA) Design Awards luncheon on June 28, 2006.

Linda Rosier—New York Daily News /Getty Images

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2007 An aerial Elevated view of the World Trade Center site as seen from One Liberty Plaza on Aug. 7, 2007.

Michael Appleton—NY Daily News/Getty Images

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2008 Tourists look out over the World Trade Center site, two days before the seventh anniversary of the Sept. 11 attacks on Sept. 9, 2008.

Chip East—Reuters

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2009 The World Trade Center site and New York's financial district on March 22, 2009.

Mark Lennihan—AP

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2010 A Port Authority police officer plays Taps on Sept. 11, 2010 during ceremonies to mark the 9th anniversary of the Sept. 11th terrorist attack.

Andrew Mills—AFP/Getty Images

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2011 Construction continues on One World Trade Center and the National Sept. 11 Memorial & Museum at the World Trade Center site on July 8, 2011.

Mario Tama&—Getty Images

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2012 The One World Trade Center building is seen from the 60th floor of 4 World Trade Center in New York on Sept. 7, 2012.

Bloomberg/Getty Images

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2013 One World Trade Center rises above the Manhattan skyline as seen from the pool at the Gansevoort Meatpacking NYC on June 12, 2013.

Lucas Jackson—Reuters

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2014 The "Tribute in Lights" is seen next to One World Trade Center on Sept. 11, 2014 marking the 13th anniversary of the Sept. 11th terrorist attacks.

Eric Thayer—Getty Images

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