The design for the 2 World Trade Center skyscraper has undergone some twists and turns over the years. First, Foster + Partners was hired to design it, before being dropped for BIG and its radical stepped vision. This was ultimately also nixed and Foster + Partners has been re-hired to come up with the current design. Judging from the renders, it will feature a chunky rectangular form with a glazed exterior broken up by three terraces and six corner gardens filled with greenery.