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      Spire permanently installed on One World Trade Center

      File photo/April, 2012

      Workers have permanently installed the final sections of the silver spire atop One World Trade Center. The spire brings the iconic New York City structure to its full, symbolic height of 1,776 feet, making it the tallest building in the Western Hemisphere.

      The installation was done Friday morning.

      Pieces of the spire were transported to the roof of the building last week. It weighs 758 tons.

      The 408-foot spire will serve as a world-class broadcast antenna. An LED-powered light emanating from it will be seen from miles away.

      The new tower is at the northwest corner of the World Trade Center site, which is well on its way to reconstruction with the 72-story Four World Trade Center and other buildings.