Dubrovnik, Croatia

George Bernard Shaw referred to Dubrovnik as "the pearl of the Adriatic, a paradise on earth", and indeed, it might be one of the most stunning cities you'll ever witness. Predominantly constructed and long occupied by the Venetians, Dubrovnik exudes a regal charm and remarkable architectural harmony that attracts thousands of tourists every summer. Established in the 7th century, Dubrovnik was nestled amidst a vast oak forest, from which it derived its name. Take a stroll along the ancient city walls for panoramic views of the old town and the nearby coast. Just before leaving the old town through the western gate, make a right turn to visit the Franciscan Monastery and tranquil cloisters. Right at the entrance is Europe's oldest pharmacy, established in 1371. In the northern corner of the old city lies the Dominican Cloister and Museum, housing a polyptych by Titian. The majestic Cathedral of the Assumption of the Virgin Mary is situated in the heart of Poljana Marin Držić and its treasury is open for visits; look out for the artwork by Raphael. Dubrovnik boasts warm, crystal-clear waters; don't just admire it from afar, take a plunge. The adventurous can dive and sunbathe along the rocks or swim around the city walls while others marvel from above. Dubrovnik's formidable battlements shine in the early morning light, but by early afternoon, the sea's pristine blue waters lure you away from the city and its tourist noise. If you can handle the crowd, you might also discover a slice of paradise.