The North Pole, the South Pole, Mt. Everest, and other tough nuts to crack have always been the ultimate targets for explorers. In the past 200 years, countless adventurers have found only icy graves after struggling to reach the North Pole.
北極、南極和印度埃佛勒斯峰等天險，一向都是探險家的終極目標，過去兩百年內，為了一探北極，埋身冰帽下的不計其數。