Thirteen years after the 9/11 terrorist attack, the resurrected World Trade Center is again opening for business. Publishing company Conde Nast will start moving on Monday into One World Trade Center, a 104-storey skyscraper that dominates the Manhattan skyline.
Only about 170 of his company's 3,400 employees are moving in now. Still, the opening marks an emotional milestone for both New Yorkers and the nation.
"The New York City skyline is whole again, as One World Trade Center takes its place in Lower Manhattan," said Patrick Foye, Executive Director of the Port Authority of New York and New Jersey that owns both the building and the World Trade Center site.
The skyscraper - at 1,776ft (541m), the United States of America, USA tallest building is the centrepiece of the site where the Twin Towers once stood. More than 2,700 people died on 11 September 2001, buried under smoking mounds of fiery debris.
The building's eight-year construction came after years of political, financial and legal infighting that threatened to derail the project. It cost $3.9 billion. But lower Manhattan has prospered in recent years. Today, about 60,000 more residents now live there - three times more than before 9/11.