

NEW YORK, NY - AUGUST 12, 2011 : (EXCLUSIVE, Premium Rates Apply) Inside the Museum Pavilion at the WTC Memorial as construction continues at Ground Zero in Manhattan August 12, 2011 in New York City. The site is where the World Trade Center stood before the Sept. 11, 2001 terrorist attacks. (Photo by Steven Rosenbaum/Getty Images)

NEW YORK, NY - AUGUST 12, 2011: (EXCLUSIVE, Premium Rates Apply) Swamp White Oak trees bloom as construction continues on the National 9/11 Memorial & Museum at Ground Zero in Manhattan August 12, 2011 in New York City. The site is where the World Trade Center stood before the Sept. 11, 2001 terrorist attacks. (Photo by Steven Rosenbaum/Getty Images)

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9 September 2011-Two days before the 10th anniversary of the 9/11 attacks, the Freedom Tower rises above the World Trade Center site as a worker prepares the site for Sunday's memorial ceremonies.
Photo Credit: Sipa Press
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The 9/11 Memorial
NEW YORK,NY - AUGUST 30, 2011: (EXCLUSIVE, Premium Rates Apply) The bronze parapets is seen at the National September 11 Memorial & Museum at Ground Zero in Manhattan on August 30, 2011 in New York City. The names of the nearly 3,000 individuals who were killed in the September 11 attacks in New York City, Pennsylvania, and at the Pentagon, and the February 1993 World Trade Center bombing is inscribed on the bronze parapets surrounding the two one-acre sized pools, the former footprints of the World Trade Center's Twin Towers, The 9/11 Memorial Museum is slated to open in September 2012. (Photo by Steven Rosenbaum/Getty Images)

NEW YORK,NY - AUGUST 30, 2011: (EXCLUSIVE, Premium Rates Apply) A grove of Swamp White Oak trees bloom as construction continues on the National 9/11 Memorial & Museum at Ground Zero in Manhattan on August 30, 2011 in New York City. The site is where the World Trade Center stood before the Sept. 11, 2001 terrorist attacks. (Photo by Steven Rosenbaum/Getty Images)

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9 September 2011-Two days before the 10th anniversary of the 9/11 attacks, the World Trade Center site.
Photo Credit: Sipa Press
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9 September 2011-Two days before the 10th anniversary of the 9/11 attacks, workers prepare the World Trade Center site for Sunday's memorial service.
Photo Credit: Sipa Press

9 September 2011-Two days before the 10th anniversary of the 9/11 attacks, the Freedom Tower (left) rises above the World Trade Center site.
Photo Credit: Sipa Press

The Freedom Tower stands high over the World Trade Center as work continues at the World Trade Center site on August 4, 2011 in New York. The memorial is scheduled to be dedicated on September 11, 2011, the 10th anniversary of the attacks on the World Trade Center. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/Getty Images)
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<> on August 24, 2011 in New York City.

9 September 2011-Two days before the 10th anniversary of the 9/11 attacks, workers ready the World Trade Center site.
Photo Credit: Sipa Press



























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The Observer will be reporting throughout the day from the commemoration of the 9/11 memorial at ground zero. Check back for updates, but in the meantime, enjoy this tour.