The 55-story skyscraper is scheduled to be completed in 2031. Scheduled to open in 2031, 2 World Trade Center will be the global headquarters of American Express as seen in this rendering of the building. Foster + Partners/WTC Twenty-five years after the terror attacks of Sept. 11, 2001, left a gaping void in Lower Manhattan, American Express broke ground Thursday on its new headquarters, a tiered glass and steel tower at 2 World Trade Center.