kurfürstliches schloss koblenz, city side way

estate plaza architecture palace walkway building property courtyard memorial landmark city facade neighbourhood garden home mansion lawn koblenz germany 2024 kurfafrac14 rstliches schloss side rhinelandpalatinate famous mosel estuary deutsches eck north mittelrheintal unesco world heritage site historic old town rebuild shows mix medieval buildings rivers tourism nearby rhine valley middle rhein river beautiful europe travel holiday destination weltkulturerbe vacation confluentes coblenz