This cruise has a great itinerary, going from Paris by bus to Trier, Germany where you sail on the Mosel into the Rhein at Mainz and on to Basel, Switzerland, with another bus ride to Zurich. There is so much history on this route, starting with Roman ruins in Trier, one of the oldest cities in Germany. You also visit Worms and Mainz, the locations where Martin Luther initiated the Protestant Reformation and Johann Gutenberg created the printing press. After two educational and enjoyable wine tasting excursions on the Mosel, the highlight of this cruise was a daytime cruise on the Rhine, where we saw 16 medieval castles, some intact and functional and others in ruins. A short visit to the U.S. Military Cemetary in Luxembourg was another highlight. All of these sites are reached while traveling in comfort on a Viking riverboat with excellent food and service. The menu options featuring local specialties made the meals even more enjoyable. The service in the dining room and our cabin reflected the high quality we have come to expect from Viking.