Celebrate folk traditions in Romania, Bulgaria, Serbia, Croatia and Hungary. Behold the grandeur of Vienna. See castles on the Rhine. Cruise Amsterdam’s canals. These travel icons—and more—await you on a 23-day journey combining our Passage to Eastern Europe and Grand European Tour cruises. Discover eight countries in Eastern, Central and Western Europe while cruising the Danube, Main and Rhine. Enjoy a lifetime’s worth of experiences on a single voyage.