Eternal flame of Olympus

At Cirali there are about 30 flames burning between the rocks on Mount Olympos (the site used to be called the eternal flame). Each is the size of a small fire, maybe a foot high, and the area smells like propane (not entirely surprisingly). The flame is part of folklore going back thousands of years, so it is clear that the site has been the same for a long time.

The phenomenon is a gas leak of some sort, and apparently if any flame is put out it reignites within seconds or minutes.

Trying to imagine stumbling upon a site like this a couple thousand years ago -- it would have certainly inspired a faith in whatever forces are said to be behind the phenomenon.