Spire Installed on One World Trade Center

Now stands at 1,776 feet

To cheers from spectators and workers alike, construction crews set a silver spire atop New York City's One World Trade Center on Friday to bring the structure to its full 1,776 height and cap an emotional 12-year effort to restore a key part of the city skyline shattered by the 9/11 terror attacks.

The 408-foot spire, which weighs 758 tons, includes a broadcast antenna and a light that will be visible from miles away to serve as a both a beacon for aircraft and a permanent signal of triumph over the attack the rocked the city.