From the brightly painted buildings and fishing boats that line the seafront, to the hilltop baroque church that stands watch over old town—it’s no wonder Rovinj is one of the most-photographed coastal towns along Croatia’s Istrian Peninsula.

Popular in the late 18th and early 19th century with luminaries such as Strauss, Wagner, Kafke, Freud, Twain and Edward VII, this sprightly spa town is a charming spot. Delicately painted spa houses and hotels tiptoe up the lush, forested mountainsides. One hundred mineral springs with high carbon dioxide and iron content confetti the town and nearby hillsides, many with neat colonnades and stately pavilions. The most famed is the cupola-capped and colonnade-adorned Krizovy pramen.

In progressive Berlin, the old buildings of Mitte gracefully coexist with the modern Reichstag. Don't miss top historic sights like the Berlin Wall, Checkpoint Charlie, the Brandenburg Gate and Potsdamer Platz. The city's great zoo makes for a fun break from touring the staider attractions.