Which river runs through the cities of Basel, Strasbourg, Karlsruhe, Mainz, Koblenz, Bonn, Cologne, Dsseldorf, Arnhem, Utrecht and Rotterdam?
Rhine Alpenrhein River Rhinen Rhine Estuary Rhinewater River Rhein The Rhine Upper Rhine River Plains Rhein River Rhine river Rhine basin Rhine River Rhine (river) Rhein (river) Rhine mouth Rijn River Rhine Pollution: November 1986 Length of the Rhine Rayn River Rhine