This is as impressive as adventure filmmaking gets. Adventurer/daredevil/madman Dean Potter and photographer Michael Schaefer create a truly breathtaking scene as Potter walks a highline at Cathedral Peak in Yosemite National Park. As the sun sets, the moon rises and looms large while Potter traverses the highline. Shot from over a mile mile away using a serious telephoto lens, the footage was captured during the 2011 filming of the National Geographic Channel show, "The Man Who Can Fly." Stunning.