The skyscraper is scheduled to be complete in 2031 and rise 1,226 feet.
Multiple cities in the Chicago area have events planned Monday to honor the lives lost 22 years ago.
Firsthand accounts from those who were in lower Manhattan on that fateful day, with commentary from then-anchor Bill Beutel. (Warning: This contains images that some may find disturbing.)
Eyewitness News reporter N.J. Burkett and photographer Marty Glembotzky rushed down to the World Trade Center on September 11, 2001. While shooting a standup right below the burning towers, the first tower began to collapse.
The stories appear as they aired 22 years ago when terrorists crashed hijacked planes into the World Trade Center.
The document is a summary of a 2015 FBI interview with a suspected Saudi Intelligence Agent who was living in California.