The infernal hole
This natural volcanic formation of the earth makes us remember the classic representation of hell. The solidified magma seems like souls in pain, suffering, all deformed, sinking into the hell hole, falling deep into the biblical punishment. Dante Alighieri has visited this place for sure.
It is impressive how the worst horrors of the human mind are found on our own planet and not in any other part of the universe. This could lead us to think that both hell and paradise coexist in our world. One could also believe that God and the devil are, in a way, inside of us; who knows?