Everest Unmasked

Legendary high-altitude climber Reinhold Messner pushes himself to the limit in achieving the first successful summit without the use of supplemental oxygen.Legendary high-altitude climber Reinhold Messner pushes himself to the limit in achieving the first successful summit without the use of supplemental oxygen.Legendary high-altitude climber Reinhold Messner pushes himself to the limit in achieving the first successful summit without the use of supplemental oxygen.