Rhine River map with castles: the most popular Rhine Castles ... (Why I love to book on GYG: Book Now, Pay later, fee cancellation!) From Frankfurt: Rhine Valley Day Trip (7 hours) Koblenz ...

the extensive terraced vineyards and the ruins of castles that once defended its trade. The river breaks through the Rhenish Slate Mountains, connecting the broad floodplain of the Oberrheingraben ...