On the outskirts of Melbourne, HM Prison Pentridge used to host famed criminals of various guilts, from serial killing to planting fake bombs to raise awareness of the nuclear threat.
Although Australia's incarceration rate is on a slight uptrend, some aging facilities need replacement. And when that happens, historic buildings become available for creative new purposes for those who dare.
The medieval castle-like building opened its main gate to prisoners and their guards in 1851, and for the next century and a half, it was a spine-chilling place witnessing executions and occasional escapees.