World Trade Centre rises again

Port Authority officials on April 2, 2013, unveiled the stunning view from the top of One World Trade Center, a 360-degree eagle's eye panorama that will instantly become one of the city's premiere tourist attractions when it is completed in 2015.

The rising sun hits the side of One World Trade Center as it stands among other buildings in New York, April 2, 2013.

Members of the media take pictures of New York through the windows of the 100th floor observation deck in One World Trade Centre before a press conference in New York on April 2, 2013.

Southern Manhattan spreads out below the windows of the 100th floor observation deck in One World Trade Center in New York.

The Empire State Building stands behind workers as they clean the windows of the 100th floor observation deck in One World Trade Center before a press conference in New York on April 2, 2013.

A March 23, 2013, photo of an airplane landing at La Guardia airport streak across the sky, past the new World Trade Center (left) in New York.

A December 2012 photo of the head of the new World Trade Center building visible above the clouds over New York. The 100th floor observation deck from the top of One World Trade Center was unveiled in New York on April 2, 2013.