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The Underground Fortress of Château de Brézé

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The Underground Fortress of Château de Brézé

Castle built atop a Fortress - Château de Brézé - Bellevigne-les-Châteaux, France - Beneath its foundation lies one of Europe's largest underground fortress - Connected by more than 3 kms of tunnels

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The Underground Fortress of Château de Brézé

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