A crew member helps position the final section of spire before it raised by crane to the top of One World Trade Center skyscraper in New York City on May 2, 2013. The final section, comprising the 17th and 18th pieces, will bring the building to its iconic height of 1776. Once the pieces are installed, at a later date, the spire will make One World Trade Center the tallest building in the Western Hemisphere. UPI/John Angelillo