In the Schlögener Loop, the Danube makes two spectacular U-turns before finally deciding to take the most beautiful route to Vienna: through the narrow Wachau valley, where castle ruins and icing-sugar monasteries peep out from terraced vineyards and apricot orchards. A UNESCO World Heritage Site, the home of great wines and beguilingly beautiful. You’ll be spoiled for choice in Vienna. There’s just so much to see: historical buildings and museums, naturally, but also unexpected delights like a café that sells furniture, crazy second-hand shops and a tiny basement where you can listen to the finest jazz music. Linz will captivate you with its exciting stylistic contrasts, from Baroque to contemporary. Alone the Lentos Art Museum, which features works from the 20th and 21st centuries, and the Ars Electronica Center, with its high-tech exhibits, will keep you busy for hours.