Spire raised on top of One World Trade Center (13 images)

Crews at the World Trade Center site watch the final section of spire as 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

The final section of spire is 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

People look out of a window to watch the final section of spire as it is 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

Crews at the World Trade Center site watch the final section of spire as 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