Yuma Territorial Prison
Yuma Territorial Prison's population was made up of thieves, murderers, and the occasional polygamist, and over 111 inmates died here, making it one of the more ghoulish state parks in Arizona. To this day, guides at the park report feeling a “cold chill” when passing by Cell 14 -- where John Ryan, imprisoned for "crimes against nature," committed suicide. Even more unnerving is The Dark Cell, which is exactly what it sounds like: a dark crypt where rowdy convicts were sent for acting up. Accounts cite that two inmates, who were literally chained to ring-bolts up here, had to be urgently transferred an insane asylum upon their release from isolation. More recently, one reporter tried to spend two days in the Dark Cell. She didn’t make it past 37 hours, and cited she felt she wasn’t the only one in the chamber.