The Danube Bend, Budapest

Duna, the Hungarian name of Danube, is said to have its most scenic stretch at the spot where Buda was divided long ago by Pesta. In fact, it's a narrow valley, lined with beautiful historic cities, most appreciated out of the 1,890 miles of coursewater from the Black Forest to the Black Sea. The most populat river-sided town is Szentendre, founded by the Serbs who managed to rescue themselves out of the Turkish invasion. An art hub since 1920, full with Orthodox churches.