1. Alcatraz , USA

2. Devil's Island, French Guiana

3. Tower Of London, United Kingdom

4. Robben Island, Cape Town, South Africa

5. Château d'If, France

This prison is in France off the coast of Marseille. From 1634 through the end of the 19th century, it was served as a dumping ground for religious and political prisoners. Then, the prisoners from the wealthy class received better treatment than the less privileged ones. However, they often had to pay for the privilege. It was demilitarized and opened to the public in 1890 and is now one of the most famous prisons of the world. Alexandre Dumas’s book,” The Count of Monte Cristo,” was based on the island, and its success made Château d’If famous. Two adjacent cells are named after Edmond Dantes and Abbe Faria, they were the main characters in the book. Dantes escaped from the island in the story, but nobody is believed to have escaped.