U.S. Steel Tower

The U.S. Steel Tower, also known as the Steel Building or USX Tower, is a 64-story skyscraper at 600 Grant Street in downtown Pittsburgh, Pennsylvania. The interior has 2,300,000 sq ft of leasable space. Standing 841 ft tall, it is the tallest building in Pittsburgh, the fifth-tallest in Pennsylvania, the 69th-tallest in the United States, and the 200th-tallest in the world. It held its opening dedication on September 30, 1971.The tower's original name when completed was the U.S. Steel Tower and was changed to USX Tower in 1988. The name was changed back to the U.S. Steel Tower in January 2002 to reflect U.S. Steel's new corporate identity. Although no longer the owner of the building, U.S. Steel remains one of the largest tenants.