If you've ever wanted to stay overnight and ghost hunt at a haunted location, here's your chance! The Missouri State Penitentiary was once dubbed the oldest operating prison west of the Mississippi. It was opened from 1836-2004, and in its 168 years operating it was home to some serious criminals, death row inmates, and even a gas chamber where 40 inmates were executed. Ghost Hunts USA is setting up several overnight ghost hunts at the infamous penitentiary. The dates start in March and go through November, to see the list of all the dates, check their website, here. When you join in on the hunt you'll get to experience a ghost hunt with professionals. Here's what they say about the upcoming overnight ghost hunt on their Facebook event page: