HM Prison Geelong was a maximum security Australia prison

Prison

A prison is a place in which people are physically confined and, usually, deprived of a range of personal freedoms. Imprisonment or incarceration is a legal penalty that may be imposed by the state for the commission of a crime...

 located on the corner of Myers Street and Swanston Street in Geelong, Victoria

Victoria (Australia)

Victoria is the second most populous state in Australia. Geographically the smallest mainland state, Victoria is bordered by New South Wales, South Australia, and Tasmania on Boundary Islet to the north, west and south respectively....

, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The prison was built in stages from 1849 to 1864. Its panopticon

Panopticon

The Panopticon is a type of building designed by English philosopher and social theorist Jeremy Bentham in the late eighteenth century. The concept of the design is to allow an observer to observe all inmates of an institution without them being able to tell whether or not they are being watched...

 design is based on Pentonville

Pentonville (HM Prison)

HM Prison Pentonville is a Category B/C men's prison, operated by Her Majesty's Prison Service. Pentonville Prison is not actually within Pentonville itself, but is located further north, on the Caledonian Road in the Barnsbury area of the London Borough of Islington, in inner-North London,...

 Prison in England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. The prison was officially closed in 1991 and prisoners were moved to the newly built HM Prison Barwon

HM Prison Barwon

HM Prison Barwon is a maximum security Australian prison located at 1140 Bacchus Marsh Road, 6 km from the township of Lara, , Victoria, Australia. Barwon provides accommodation and services for maximum security mainstream prisoners including a 20-bed facility for high security prisoners and a...

 in Lara

Lara, Victoria

Lara is a residential rural suburb, 15 km north-east of Geelong, inland from the Princes Freeway to Melbourne.- History :The explorers Hume and Hovell arrived at Lara on December 16, 1824, believing that they had reached Westernport Bay...

.
The gaol was built by prisoners who slept on high security barges on Corio Bay

Corio Bay

Corio Bay is one of numerous bays in the southwest corner of Australia's Port Phillip, and is the bay on which abuts the City of Geelong. The nearby suburb of Corio takes its name from Corio Bay.-Name:...

 during construction.