Weird, I just watched yesterday on youtube, totally unrelated. I've seen it too many times, but each time it still amazes me.
Here's another cool one on top of the mud one mentioned above. Geologists were exploration drilling and hit a large natural gas pocket. They then set it aflame. Been burning for at least 35 years. Make sure you watch video, it truly does look like the Gate to Hell.
http://www.geeksaresexy.net/2008/09/...hell-on-earth/
I just want to create a giant spit, put it over top, and have the world's largest bbq.