source https://www.cnn.com/travel/article/everest-reconnaissance-mission-1921/index.html
Everest's 100 years of destiny and death on the roof of the world
It's a fact every school child knows: Mount Everest is the tallest mountain in the world.
source https://www.cnn.com/travel/article/everest-reconnaissance-mission-1921/index.html
source https://www.cnn.com/travel/article/everest-reconnaissance-mission-1921/index.html