FILE - In this Sept. 11, 2010 file photo, the "Tribute in Light" shines above the construction cranes on One World Trade Center, and the lower New York skyline. In an annual tradition, the two bright blue beams of light are projected from lower Manhattan, in memory of the fallen twin towers. On World Trade Center's spire was fully installed atop One World Trade Center on Friday, May 10, 2013, bringing the New York City structure to its symbolic height of 1,776 feet. (AP Photo/Mark Lennihan, File)
NEW YORK (AP) — With the installation of a tall, silver spire on Friday, One World Trade Center, scheduled to open next year on the northwest corner of the trade center site, reached its symbolic height of 1,776 feet.
Here's a collection of images spanning the last six years showing the construction of the site and the tower, from the foundation to the top.
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