The tallest building in the United States is the One World Trade Center, located in New York City, New York. This office building is an astounding 1,776 feet tall.

In 2023, and continuing through 2026, the tallest building in the United States is One World Trade Center in New York City. It reaches a symbolic height of 1,776 feet (541 meters), referencing the year the U.S. Declaration of Independence was signed. This height includes its massive spire; without the spire, the roof height is 1,368 feet, which was the height of the original North Tower. It surpassed the Willis Tower (formerly Sears Tower) in Chicago, which stands at 1,450 feet. While there are "supertall" residential buildings like Central Park Tower (1,550 feet) that have a higher roof than One World Trade, the official architectural height—which includes permanent spires but not antennas—still places One World Trade Center at the top of the list. It remains an icon of the New York City skyline and a testament to the city's resilience following the events of September 11, 2001.