The Old Geelong Gaol, built from local bluestone in 1849, was the second penal institution in Victoria and one of the few examples of the radial-spoke "Pentonville" prison design left in Australia. It was in continuous use until 1991 — every cell originally had an iron-cot and a slop bucket and not much else.
It is now run as a museum by volunteers from the Rotary Club of Geelong. Daytime tours walk you through the cell blocks, the punishment cells and the gallows; the popular night-time "ghost tours" lean into the building's grim reputation. Open weekends and most Wednesday afternoons; ticketed.