EarthCam, Inc., a 
Hackensack, NJ-based provider of webcam content, technology and services, including job-cams for construction projects worldwide, posted an edited time lapse video of 12 years of construction at New York City’s World Trade Center to commemorate the anniversary of the attacks that brought down the trade center’s twin towers on Sept. 11, 2001.

The video spans the period from October, 2004 to September, 2013 and was hand-edited from hundreds of thousands of high-definition images captured of work at the site. Prominently featured is the rise of One World Trade Center.