One of the topics i found more interesting are the ones about the gates of hell. According to Christianity, these "gates"/holes are the closest and hottest to the center of the Earth. Many priests and high religious men have claimed to have visions of hell while near said gate.
Personally, I don't think these exist per se. I tend to disagree with Christianic (is that a word...?) beliefs. From what I've researched/learned is that hell is a dimesion, not in the center of the earth, in which one is able to burn off his or her karma.
Just want to respectfully hear anyone's theories and opinions on these.