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Île d'If, Marseille 13007, France

Never mind the fancy name, the "château" is actually a former prison—the Mediterranean equivalent of Alcatraz. Built in the 16th century, the island jail was the setting for Dumas's classic The Count of Monte Cristo. Today, the guards have been replaced with guides. There's also a museum of the prison's history.

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Chateau d'If

Never mind the fancy name, the "château" is actually a former prison—the Mediterranean equivalent of Alcatraz. Built in the 16th century, the island jail was the setting for Dumas's classic The Count of Monte Cristo. Today, the guards have been replaced with guides. There's also a museum of the prison's history.