It's official - One World Trade Center, which rises above the lower Manhattan skyline in New York City is the tallest building in the USA. It measures 1,368 feet without its decorative spire, which adds 409 feet making it 1776 feet tall.
The Council on Tall Buildings and Urban Habitat, which is the official arbiters of all things architectural, says that the 409-foot antenna atop 1 WTC counts toward the building's full height.
One World Trade Center is now the tallest in the nation... Without the needle, the building stands at a 1,368 feet, which rivals the Willis Tower's 1,451 feet. Good bye Chicago, Hello NYC.