25 years after 9/11, the WTC's final office tower is rising; it's a 55-story, 1,226-foot building

{}Construction has officially begun on the last commercial office tower at the World Trade Center site. This impressive 55-story structure will be the new global headquarters for American Express. Spanning nearly two million square feet, it’s projected to be fully operational by 2031, contributing billions to the economy and creating thousands of new jobs. This marks a pivotal milestone in the site's redevelopment after 25 years.