5Rhine Valley
As the mighty Rhine flows from Rüdesheim to Koblenz, the landscape’s unique face-off between rock and water creates a magical mix of the wild (churning whirlpools, dramatic cliffs), the agricultural (near-vertical vineyards), the medieval (hilltop castles, half-timbered hamlets), and the modern (in the 19th-century sense: barges, ferries, passenger steamers and trains) in the Rhine Valley.