The Old Geelong Gaol and Museum has a great variety of displays that tell the history of the gaol and visitors get hands on experience of the harsh conditions prisoners and staff endured at the facility.
Visitors can experience solitary confinement cells, get a taste of prison life, meet some infamous figures who have spent time at the gaol and see the original hallows.
https://www.visitvictoria.com/regions/geelong-and-the-bellarine/things-to-do/history-and-heritage/old-geelong-gaol