Many of us will never make it more than five thousand feet or so above sea level, but some people spend their whole lives over ten thousand feet above the rest.
Up here, oxygen is scarce, the winters are harsh, and transportation is often useless against the onslaught of the elements. Still, motivated by tradition, ties to the land, or mining incentives, many people call these cloudy villages and cities home.
The majority of the world's highest settlements are in Tibet, India, and Peru, and they're usually nestled at the foot of even higher and more uninhabitable mountain ranges like the Himalayas or Alps.
Read on to discover the world's highest altitude cities, towns, and settlements, discover their often tragic histories, and be grateful for the abundant air you're breathing now.