holy cross collegiate gothic cathedral rising over ostrow tumski island and odra river in historic old town of wroclaw in poland

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