Join Joost Ouendag, Vice President of Group Product Development at Viking, as he explores the UNESCO World Heritage Sites you can visit on a voyage with us along the Rhine and Danube Rivers. UNESCO Sites are landmarks or areas with a natural or cultural heritage considered to have outstanding value to humanity. Joost shares a comprehensive overview of the important sites that you can discover with us on the Rhine and Danube, including the historic network of windmills at Kinderdijk, the Gothic Cologne Cathedral and the magnificent landscapes of Austria’s Wachau Valley.