castle pfalzgrafenstein and castle gutenfels, kaub, rhineland-palatinate, germany, europe

gutenfels kaub pfalzgrfenstein pfalz falkenau island middle ages rhine rhineland rhinelandpalatinate germany europe castle fortress fort citadel bastion defensive river landmark attraction sightseeing sight sights landscape nature historic historical unesco shpulak pfalzgrafenstein rhineland-palatinate europe pfalzgrafenstein foreground background