german corner, koblenz were rhein and mosel meet. a river barge in the foreground with the fortress ehrenbreitstein in

koblenz ehrenbreitstein german corner emperor wilhelm history building travel germany old europe landmark tourism heritage historic ancient attraction stone tour photography antique baroque destination europa historical medieval outdoors facade view rhinelandpalatinate rhine statue mosel rheinland fortress coblenz moselle rhein river palatinate rhineland monument sculpture deutsches summer eck cable car