Ground Zero ten years later
Sept 11 Rebuilding
Credit: AP
In this Aug. 2, 2011 file photo, work continues on the foundation for Three World Trade Center, foreground, while One World Trade Center, top, rises in the New York skyline. Developer Larry Silverstein is building Three World Trade Center while the Port Authority of New York and New Jersey is responsible for One World Trade Center. (AP Photo/Mark Lennihan, File)