Conquered: AF 7 Summits Team scales Everest
Capt. Marshall Klitzke gives a thumbs up at the top of Mount Everest, Nepal, in May 2013. Everest is the tallest mountain on Earth, standing 29,029 feet above sea level. Klitzke is an instructor pilot with the 557th Flying Training Squadron at the Air Force Academy in Colorado Springs, Colo., and an Academy graduate. (U.S. Air Force photo)