Our directory of old prisons and jails and related museums and attractions is a work in progress, as there are hundreds (or perhaps thousands) of listings to be added. The criteria for listing in the directory is that there must be at least a publicly-accessible or visible ruin with a marker where an old prison or jail exists and whenever possible we include a link to a website with information about visiting if this is allowed. Our criteria for “old” is somewhat fluid, but generally would be facilities that are at least 75 years old.  Send corrections or suggestions to: admin@oldprisons.com