One World Trade Center To Reach Full Height On Monday
The final pieces of One World Trade Center's spire will be raised on Monday, making the skyscraper the country's tallest building at 1,776 feet.
Installation of the spire began in December.
The 18 pieces that are being assembled together were shipped from Canada and New Jersey.
One World Trade Center will be the third-largest building in the world when it opens sometime next year.