So it seems I have overlooked black metal somewhat on here. The reasons are many; however, now is the time to bore a new hole in your mind with Mexico's Xibalba.
In Mayan mythology, Xibalba is a place of total fright. This was the name of the Mayan underworld, which was ruled by the spirits of disease and death. They were mean sons of bitches who invited innocent children down to play ball games, and then they killed them. The entrance to Xibalba was to be found in a cave in Guatemala or Belize or somewhere, though the physical realm of Xibabla is actually the Orion Nebula. Anyways, all of this cannot be a bad theme for a black metal band, can it?
Xibalba - "Furor Antiquus"