Door to Hell

The Darvaza Gas Crater which is situated in the middle of the Karakum Desert, Turkmenistan is known as "Door to Hell". 

It has a diameter of 70 meters. The hot spot range over an area with of 60 meters and a depth of about 20 meters. 

 Its actual name is Darvaza Gas Crater. Because it's situated near the Darvaza Village. But the locals know the crater as "Door to Hell". 

As noxious methane gas leaked into the air Soviet Geologists intentionally set it on fire in 1971 to prevent the spread of methane gas and it thought to have been burning continuously ever since. 

In 2013 George Kourounis a Canadian adventurer was the first person to go inside the crater in an expedition funded by National Geographic.

Calling it a human-made crater, the president of Turkmenistan said, "It negatively affects both the environment and the health of the people living nearby." 

And he decided to extinguish it.