Daredevil Nik Wallenda (previously) broke the Guinness World Records for the “Highest Incline Tightrope Walk” and the “Highest Blindfolded Tightrope Walk” as he made a pair of walks between Chicago skyscrapers on Sunday, November 2nd, 2014. Both walks, which were 588 feet and 671 feet, respectively, were completed without the aid of a safety net or harness.