One World Trade Centre, the monolith being built to replace the twin towers destroyed in the 9/11 terror attacks, has become New York's tallest building, overtaking the Empire State Building.
Presenting 8 knockout pics from Boman Irani's Instagram account. Yes! You heard it right.
Two skyscrapers were decimated the day 2,996 died, one and a half decades ago. George Joseph profiles the monument that has replaced them.
The 104-storey building's opening marks an emotional milestone for the United States.
At ground zero, hundreds of victims' relatives and dignitaries gathered to hear the reading the names of the nearly 3,000 people killed during the attack.