I remember watching a series called faces of death when I was younger with some friends. It was one of these things that was banned so we thought we were "cool" watching it.

It was basically real life recordings of death, from newspapers, internet videos and so on. There was nothing sexual about it, but some images just stay with you. A fascination with death really is a part of the human condition, at the lowest level, religions are really just people trying to think about it