Discover delightful stops along three emblematic European rivers—the Danube, Main, and Rhine. We have chosen excursions at each port of call with care. Vienna, the imperial city with extravagant baroque architecture, awaits you! Dive into Regensburg's fascinating 2,000-year-old history. Further along Germany's Romantic Road, the medieval cities of Nuremberg, Rothenburg, and Würzburg ooze singular charm. Lastly, the NYC-like skyline in Frankfurt is quite a breathtaking experience.