Qamdo Bamda Airport
Qamdo Bamda AirportSitting all tranquil-like in Tibet, this runway doesn't look that dangerous... until you realize that it's 14,219ft high, which makes this the highest runway in the world. The significance of that? The air has a lower density at such a high altitude, which makes the plane engines produce way less thrust... much like you after a few of those mini booze bottles. [Photo via]