2The Lut Desert, Iran

Surface Temperatures Recorded: Up to 70.7°C (159.3°F) While not an inhabited area, Iran’s Lut Desert deserves mention for having the hottest surface temperature ever recorded on Earth.

NASA satellites measured a scorching 70.7°C in 2005. Walking barefoot here would be suicidal. It’s a prime example of nature’s raw intensity, where even bacteria struggle to survive.