Yanar Dagh, the "Burning Mountain" burns, and burns and burns. The site was established as a touristy place in the middle of nowhere in 2007— and since then the mountain has been aflame.
It's not particularly large or stunning, but it smells a bit of methane and it's pretty cool to behold.
Perhaps the most astonishing aspect is that the flame does not extinguish even when exposed to rain, snow, or strong winds. This remarkable trait has led to its reputation as the "eternal flame."
The internetz speculate that flames like these are related to AZ's name, and that pockets of self-igniting fire have burned for centuries — which has played a great role in Zoroastrian beliefs.