coblenz fortress and fountain sculpture at the william i monument, coblenz, germany

europe european germany german coblenz corner deutsches eck equestrian memorial statue fountain sculpture kaiser wilhelm william emperor ramparts bulwark strong strength defending authority protection protected secure fortress fortified walls castle medieval koblenz unesco world heritage site federal republic rhinelandpalatinate rhineland palatinate rhine river built structure architecture construction buildings building day daylight daytime color colors colorful outdoors outdoor outside exterior people horizontal monument