koblenz, germany - 01 11 2024: kaiserin augusta denkmal

building architecture estate chapel house landmark facade arch monument memorial church tree home palace monastery mansion shrine history koblenz germany 2024: light flood oberwerth harbor city west north rhine valley estuary mosel historic old town surrounded areas low winter sun stone buildings show unique look kaiserin augusta denkmal koblenz unesco heritage rhine valley middle valley mittelrheintal koblenz koblenz rhein rhein rhine river river valley beautiful europe tourism travel holiday travel destination unesco weltkulturerbe mittelrheintal vacation confluentes coblenz