In 1971, near the village Darwaza in Turkmenistan, geologists have discovered an underground accumulation of gas. Drilled an exploration well, they stumbled into an underground cavern. Land of the void has collapsed along with her standing on the oil rigs and transport. Geologists have decided to burn the gas in the cavity, so harmful substances do not end up in the air. It was assumed that the fire was extinguished after a few days by itself, but it is lit constantly, for 40 years.
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