One World Trade Center- Final Piece of Spire [LED Beacon] Installation- Topped Off at 1,776 ft.

The One World Trade Center was topped off. The 17th section of the spire, on May 10, 2013 at 7:30 in New York City,a LED beacon, allowed the tower to become the tallest building in USA, and in the Western Hemisphere at the milestone height of 1,776 ft.
The height of the skyscraper 1,776 ft., represents the year of the Independence of the USA.