If you're going on vacation and hoping to see the highest mountain in the world from your window seat - this dream is unlikely to come true. But why are commercial airplanes actually banned from flying over Everest? The area is rough, filled with snow, and has almost no flat surfaces. The low oxygen environment at such an altitude means there's likely to be a lot of turbulence, so it gets really difficult to maneuver the airplane. And, among the few airports located in the Himalayas, there's one considered the most challenging to land in the world.

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