Which is currently the tallest building in the United States?

One World Trade Center, AKA Freedom Tower, is the tallest building in the United States, reaching a total height of 1,776 feet (541 m). Its height in feet is a deliberate reference to the year when the United States Declaration of Independence was signed. It is the 6th-tallest building in the world. Three other towers have been built on the WTC site, near cascading memorial waterfalls of the 9/11 attacks.