D 56002 Koblenz 66m, county-level city and one of the oldest cities in Germany at the mouth of the Moselle and Rhine in the so-called German Corner in northern Rheinland Pfalz. View from the fortress Ehrenbreitstein southwest to the German Corner, an artificially raised headland at the mouth of the Mosel and Rhine. Presented by https://www.bafg.de/DE/Home/homepage_node.html.