1. Derweze – Turkmenistan
This frightening yet somehow fantastic 70 meter wide phenomenon can be found in the middle of the Karakum desert. Caused by Soviet geologists drilling into a cavern in 1971 the ground had collapsed due to a build-up of natural gas. This large gate of inferno appeared after a attempting to set ablaze the poisonous gas discharge in hopes it would burn off. However, the blazing breath of this pit is still flaming on to this day.
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