To celebrate ‘The Amazing Race’s season finale (airing Wednesday on CBS at 9:30 p.m. ET/PT and then streaming on Paramount+), ET’s Rachel Smith teams up with supervising producer Carolyn Greenspan Rosen to test out one of the show’s challenges: find 16 rolls of five different fabrics inside a giant New York City store. Then, the push it 11 blocks to the Fashion Institute of Technology.