I think this place is strange. Because it's a place with fire in the hole for 41 years. due to in the past have geologists believe that this place is a large oil fields and try to dig out the source of natural gas. But the ground above the rig back collapsed and are found to have poisonous gas spread. The amount of methane has spread out to create enormous risk to the environment. While trying to stop the situation. The scientists decided to Burning gas., which originally expected to put out themselves within the time 1-2 days. But not as expected. Because the fire still burning in that up to the present.