st. john baptist gothic cathedral on ostrow tumski island at odra river in historic old town quarter of wroclaw in poland

architecture attraction baptist cathedral chciciel christian church city cityscape collegiate cross destination evening facade gothic heritage high historic history icon island jan john katedra kolegiata kosciol landmark marcin martin museum odra old ostrow panorama panoramic picturesque poland polish polska river silesia slask slaskie staromiejski summer sunset symbol tourism touristic tower travel tumski vacation wroclaw wroclove wyspa