High wire artist Freddy Nock relied on his cerebellum to coordinate the movements necessary to walk on the rope of the Corvatsch cable car from more than 10,000 feet over sea level down to the base station in Silvaplana, Switzerland on January 29, 2011. Nock set a new mark that day for the Guinness World Records.
AP PHOTO/KEYSTONE, ARNO BALZARINI