Pictures of the Darvasa gas crater or "Door to Hell" in Northern Turkmenistan located in the middle of the Kara-Kum desert, about 200 km south of Nukus.
Darvaza at Night 1:20 Source: Disclose TV
Door to hell turkmenistan in pictures 2:01 Source:National Geographic
The Derweze area is rich in natural gas, whilst drilling in 1971 geologists accidentally found an underground cavern filled with natural gas. The ground beneath the drilling rig collapsed, leaving a large hole with a diameter of about 50-100 meters. To avoid poisonous gas discharge, it was decided to burn the gas. Geologists had hoped the fire would go out in a few days but it has been burning ever since.