Fremantle Prison is a former Australian prison and World Heritage Site in Fremantle, Western Australia. The six-hectare (15-acre) site includes the prison cellblocks, gatehouse, perimeter walls, cottages, and tunnels. Constructed between 1851 and 1859 using convict labour, the prison was initially used for convicts transported from Britain, but was transferred to the colonial government in 1886 for use for locally-sentenced prisoners. Decades of prisoner discontent, culminating in a 1988 riot that saw guards taken hostage and a fire cause $1.8 million worth of damage, led to the prison being closed in 1991. Since then, Fremantle Prison has been conserved as a heritage and tourism site, and various restoration works have been undertaken.Photograph: Iwelam