historic suitbertus stiftsplatz town square in kaiserswerth, duesseldorf, north rhine-westphalia, germany

banks barbarossa barbarossas basalt beautiful building castle clouds day duesseldorf düsseldorf emperor environment europe fortification fortress frederick friedrich germany historic history island kaiserpfalz kaiserswerth landmark landscape lower medieval nature niederrhein nordrhein nortdrheinwestfalen north nrw panorama peaceful plains rhein rheinland rhine rhineland rhinewestphalia river rocks ruin ruined ruins shore square stiftsplatz stones stream suitbertus summer town trees walls water west western westfalen westphalia wide