wall of fortification castle chateau de castelnau-bretenoux with tower. prudhomat, france

architectural artillery baron bastion blue brick castelnaubretenoux castle chateau citadel collections construction dordogne dynasty fort fortification fortified fortress france green heritage hilltop historic history impressive manor medieval military monument museum palace prudhomat quercy rearranged redstones restoration restored salons sky square stone sunlight tour tower tree triangle triangular trip valley village wall windows