The Rhine is one of the world's great rivers. It starts in the Swiss Alps and flows for 865 miles through six European countries ending up in the Netherlands and the North Sea. It connects to dozens of other rivers and canals forming a vast inland waterway. Burt visits Cologne's chocolate museum, sails through the Rhine Gorge, stops for Rudesheim's specialty coffee drink, explores Heidelberg's castle and ends with a tour of Strasbourg.