Equally as scary, but infinitely shinier and prettier to look at would be The Kawah Ijen sulphur mines by night.
I showed them to a coworker of mine and we just acknowledged that we were "both gonna have a shitton of blue and orange dramatically lit fire paintings and not resent each other for it? o ______o"
Protip for google image search: Sulphur? Yes. Bodybuilders?... Not so much.
