Most popular fortresses PolandOpole Province Fortresses Opole province Fortresses Opole Province mapSee on the map Opole province fortresses by popularity rating +NYSAPolandSt. Hedwig's Bastion See fortresses in other regions Greater Poland Kuyavia-Pomerania Lower Silesia Lublin Province Lubusz Province Masovia Opole Province Podlasie Province Pomerania Subcarpathia Warmia-Masuria West Pomerania Other categories:ChurchesMuseumsLookoutsCastlesFountainsPublic squaresArt galleriesSanctuariesParksLakesBridgesPalaces
