|One World Trade Center in April 2012.|
When it is completed in 2013, One World Trade Center will stand at 1,776 feet compared to the Empire State which towers at 1,250 feet. It will become the tallest building in the United States and the third tallest in the world.
EarthCam, an international webcam technology company, has a released a video of the construction site since 2006. The film has put together a video from time-lapsed photography using images taken every 15 minutes.