One World Trade Center open for business in New York

More than 13 years after the original towers were destroyed in the 9/11 attacks, New York's World Trade Center has re-opened for business.

Employees at publishing giant Conde Nast are starting to move into the 104-storey One World Trade Center.

The $3.8bn (£2.4bn) skyscraper took eight years to build and is now the tallest building in the US.

Video courtesy of ABC