https://www.sciencealert.com/watch-how-this-flaming-crater-started-burning-over-40-years-ago
WATCH: This Flaming Crater Has Been Burning For More Than 40 Years : ScienceAlert
Jun 23, 2016 - The Door to Hell is just as scary as it sounds. For more than 40 years, this natural gas crater in Turkmenistan has been constantly burning - and scientists...
burning for more