10Death Valley, California, USA

Average Summer High: 47°C (117°F) Record High: 56.7°C (134°F) Death Valley holds the record for the highest reliably recorded air temperature on Earth.
Located in California’s Mojave Desert, Furnace Creek in Death Valley is aptly named. The landscape is as surreal as it is sweltering—sand dunes, salt flats, and sunbaked canyons. Despite the unbearable heat, it remains a magnet for extreme tourists and photographers.

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