Category presenting defensive fortifications, fortifications, forts, fortifications and other defensive buildings mainly from previous eras.
Warmia-Masuria
Upper Silesia
Lake District Chełmińsko-Dobrzyńskie
Lublin region
Biebrza Valley
Warmia-Masuria
Upper Silesia
Lake District Chełmińsko-Dobrzyńskie
Lesser Poland
Pomerania
Kashubia
Warmia-Masuria
Coastline
Pomerania
Coastline
Lower Silesia
Subcarpathian
Lublin region
Coastline
Upper Silesia
Sudetes
Subcarpathian
Lublin region
Coastline
Upper Silesia
Sudetes
Coastline
Lublin region