This famously haunted prison's cornerstone was laid in 1886. The doors were closed on this prison in 1990. It houses the world's largest free-standing steel cell block.
This site scores this:
1. Older than 50 years.
2. Land is limestone/shale.
3. Lots of death/trauma.
4. Near a railroad track.
5. Constructed of stone.
Are you noticing a lot of high scores so far? There is a disproportionate amount of them scoring 5 and 6. So, where there's smoke, perhaps there is fire. People seem to know haunted places when they encounter them. There's a big divide between that and places like the Hollywood Sign and Chateau Marmont Hotel where one would romantically impart spirits when conditions actually weren't right for them to occur.
Keep following and we might find some more surprises in the last of my list of 50 places. Once I'm done showing you the results of the first sweep of research, we can do a little scale showing the percentage that had certain features. From there, I hope to go on to study for hard proof people have collected of hauntings and compare it to the types of haunting and the physicality. Together, we might uncover some interesting trends. Thanks for your input. I really like to see objective folks reading these findings and coming to conclusions that might help further the research.