Aachen cathedral, main entrance, view from ther courtyard, Aachen, NRW, Germany

800 aachen germany nrw north rhine rhine westphalia unesco westphalia architectural architecture basilica building buildings cathedral cathedrals charlemagne christianity church churches cities city courtyard cultural culture entrance exterior faith german heritage historic historical main monument outdoor outdoors outside pilgrimage place portal religion romance romanesque sacred sight site style ther tower towers traditional view window