Alex Honnold, American rock climber known for his free solo ascents, leads his team across a massive glacier and attempts to free ...

#national geographic  #nat geo  #natgeo  #animals  #wildlife  #science  #explore  #discover  #survival  #nature  #culture  #documentary  #photography  #ancient civilization  #history  #mystery  #perpetual planet nat geo  #full episode  #Alex Honnold  #Taipei  #Skyscraper  #Taipei 101  #Arctic Ascent with Alex Honnold  #Arctic Ascent  #Greenland expedition  #Free climbing  #Free solo climber  #Rock climbing documentary  #Extreme climbing  #Adventure documentary  #71 Degrees North  #Arctic Ascent episode 1  #Arctic expedition