Nothing special: a prison is a prison. No torture devices for you, no imitation of prisoners' moans, as in European castles. Entrance is paid. It would be possible not to go, but why not go? Let's get acquainted with the history of these places.
The object is small: the remains of a pit for prisoners (3-4 meters filled in) and 2 cells for debtors, there is nothing special to see. Only for those who really want to get acquainted. The visit is paid.