From Budapest to Passau via Bratislava, Vienna and Melk, these cities rich in culture and history will unveil their secrets. Discover the Schoenbrunn Palace and the beautiful Wachau Valley, a UNESCO World Heritage Site. With its wooded hillsides, orchards, small villages, vineyards and monasteries, it is the most picturesque part of the Danube and where the majestic Dürnstein Castle stands.