The Door to Hell (also known as Darvaza Crater), Turkmenistan
This giant burning crater is about 60 meters in diameter and 20 in depth. Locals call this place “the door to hell.” Once, geologists accidentally discovered a cave with huge reserves of natural gas. In order to avoid harmful effects on people and livestock, the gas was burned. The fire was supposed to go out after a few days, but it has been burning for 45 years. This unique and fascinating phenomenon attracts tourists from all over the world.
Photo Credit: © Tormod Sandtorv