Watch a mountain burn in Yanar Dak natural area, where continuous natural gas fires light up the hillside, as part of Azerbaijan's vast gas reserves seep through a layer of thin porous sandstone, causing flames that extend for about 10 meters, and the flames can Reaching a height of up to 3 metres, this fire was ignited when a local shepherd threw his cigarette in the fifties, its cubs have been blazing and since then the flames have not gone out, making Yanar Dak a popular destination for tourists and locals alike.