Video: Time-lapse recording shows construction of New York's tallest tower
A TIME-LAPSE video recorded over a seven-year period was released on Monday as One World Trade Center was officially recognised as the tallest skyscraper in New York City.
The two-minute recording details the construction of the tower from its bare concrete foundations in 2004 to the monumental glass tower as it stands today.
The milestone was recognised as workers erected a 12-ton steel column onto the top deck of the building, giving it a height of a little over 1,250ft – marginally taller than the Empire State Building.
However, the skyscraper, which was built to replace the twin towers destroyed in the September 11 attacks, is still unfinished with another few floors expected to be added over the next year.
Once completed, officials hope the high-rise will be the tallest building in America and the third tallest in the world.
The building, unofficially called the Freedom Tower, is considered by some a poignant symbol of America rising up against its enemies after the terror attacks on the site in 2001.
"This project is much more than steel and concrete. It is a symbol of success for the nation," said David Samson, chairman of the Port Authority, the agency that owns the World Trade Center.