If you can’t decide between a cruise along the Danube or the Rhine, then do both. On an award-winning Viking Longship, you can explore the heart of Europe on a journey that brings you countless discoveries. In The Netherlands, explore the historic windmills of Kinderdijk. Discover spectacular Cologne Cathedral. Gaze out from the ramparts of Marksburg Castle. Be mesmerised by Miltenberg, Würzburg, Bamberg and other ancient towns along the Rhine. Sail the Main-Danube Canal with its ingenious system of locks and stroll through Vienna with its imperial palaces. Few sights are more spectacular than sailing the Danube into Budapest at night. Fifteen days, four countries, one incredible journey.