Missouri State Penitentiary
My wife and I took a tour of the Missouri State Penitentiary in Jefferson City and it was very interesting. The housing blocks are somewhat intimidating to walk through especially imagining how many inmates were kept there. I got to sit in Sonny Liston's cell and hear some great stories. There are several different tours you can take. Hard to believe MSP was operating just 13 years ago, I was barely out of college. Go check it out it's really cool.
"In my father's house are many mansions..." John 14:2