Websites to hell. cursed, mysterious Websites?
There's even an Anime depicting this idea (Jugoku Shoujo) or something like that, Hotline to Hell being the website with which when you type the name of a person that person is dragged to hell and you condemned there also.
All of these "websites" present themselves to you in special situations and seem only be available at certain late night hours (12, 3, 6) and appear to simply vanish or be inaccessible otherwise.
I believe that in every legend there is a heart of truth, so I ask you, have you ever come across, read a legend or heard of any mysterious or strange Website?