Top 10 most infamous prisons in the world – Nelson Mandela was locked in #5 for 27years (With Pictures)

6. Devil’s Island, French Guiana 

Devil’s Island, or the penal colony of Cayenne was a prison that operated from 1852, when the French empire was ruled by Napoleon Bonaparte till 1953. The prison was used by the French for exile of political prisoners. The most famous prisoner was Captain Alfred Dreyfus. Escape from the island was considered impossible as it was surrounded by piranha-infested rivers and the thick jungles of the South American country