Prior to the September 11, 2001 attacks in New York City, the twin towers of the first World Trade Center occupied the second and third positions on the list below, behind Willis Tower. The North Tower (1 WTC) stood at , while the South Tower (2WTC) was tall. If they were still standing today, they would occupy the seventh and eighth positions on the list below, with their replacement—the new One World Trade Center—being excluded.