A decade ago, Gerlinde Kaltenbrunner worked as a nurse saving money for cherished climbing trips. In August 2011, she became the first woman to summit the world’s fourteen 8,000-meter peaks without supplemental oxygen with her daring climb of K2, to be featured in the April 2012 issue of National Geographic. Meet this intrepid mountaineer and share her odysseys to the world’s highest places. Price: NG Member: $18; General Public: $20 3-Part Series: $51/$57