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