Knocking on Hell's Door

"It used to be a modest Soviet mine shaft that collapsed into cavern of gas in 1971, to avoid the risk of releasing poisonous gasses into the atmosphere local engineers set the gas on on fire – it’s its been burning and lighting up the desert sky ever since."

http://janchipchase.com/2010/06/knocking-on-the-door-to-hell/


http://en.wikipedia.org/wiki/Derweze