Newcastle-Maitland, Australia
A very, very freaky place to visit because whilst it is an old, imposing sandstone constructed prison, it has all the "mod cons" such as razor wire and CCTV mountings in place – it was still being used as a gaol within the past 15 years.
Listen to the audio guide for Maitland Gaol Visitor Information Centre Free on WIP — starts by itself when you arrive, even with the screen off