fortification near Marseille, France
The Château d'If is a fortress (later a prison) located on the island of If, the smallest island in the Frioul archipelago situated in the Mediterranean Sea about 1.5 kilometres (7⁄8 mile) offshore in the Bay of Marseille in southeastern France. It is famous for being one of the settings of Alexandre Dumas' adventure novel The Count of Monte Cristo. If is the French word for the yew tree.
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