architecture building historical bridge preservation of ancient monuments restoration renovation historic monumen town city view Regensburg Steinerne Brücke stone bridge Christine Schimpfermann building directorate and Alfons Swaczyna head of civil engineering department
Architektur Bauwerk historisch Brücke Denkmalpflege Sanierung Regensburg Stadt Stadtansicht Steinerne Brücke Christine Schimpfermann Baureferentin und Alfons Swaczyna Leiter Tiefbauamt
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