Glide past fairy-tale castles and medieval villages aboard Tauck's ms Swiss Emerald, ms Swiss Jewel or our new-for-2011 riverboat on this popular Danube River cruise. Explore Prague, Vienna, Salzburg, Bratislava and Budapest, plus the castle-studded Wachau Valley - taking in views of the Czech Republic, Germany, Austria, Slovakia, and Hungary. Enjoy a private Imperial evening with dinner and music in Vienna... a wine tasting in Dürnstein... a day in Mozart's Salzburg... a private tour of Baroque monastery libraries in Prague... and evenings of cultural entertainment aboard your riverboat. In Vienna, see the Hofburg's silver treasures or tour opulent Schönbrunn Palace. Admire frescoes, stained glass windows, and stunning architecture as you spend two nights each in Budapest and Prague in 5-star hotels, checking out remarkable bridges, cathedrals, museums, and grand Habsburg palaces... it's truly a cruise to remember!