The new One World Trade Center, also called One WTC or the Freedom Tower, has a total height of 1,776 feet (541 meters) including its spire. The top floor is at 1,368 feet (417 meters), which matches the original World Trade Center North Tower's roof height. The 1,776-foot height is symbolic, referencing the year 1776, when the United States Declaration of Independence was signed. This makes One World Trade Center the tallest building in the United States and the Western Hemisphere.