rotwasserstelz castle, on the banks of the rhine, hohentengen, baden-wuerttemberg, germany

castle rhine river germany fortress landscape baden wuerttemberg historic riverside bank german nature scenery high rotwasserstelz hohentengen travel bridge riverbank riverfront shore water reflection reflected reflect calm waterfront swissgerman border switzerland europe european history historical medieval 12th century ancient culture architecture building attraction hochrhein roetteln burg kaiserstuhl waldshut district picturesque outdoor destination day daytime