3. Dubrovnik, Croatia
Photo credit: Victor Gonzalez
Dubrovnik is a city in southern Croatia that faces the Adriatic sea. The city is surrounded by massive stone walls that have been standing strong since the 16th century. You can find everything from baroque churches to gothic palaces — just make sure to tread carefully on the slippery limestone streets.
4. Vienna, Austria
Photo credit: Abariltur
Vienna has everything from an energetic nightlife to a vibrant legacy of arts & culture. You can thank the Viennese for inspiring many famous musicians and philosophers and even Ferdinand Porsche, founder of…you guessed it: Porsche.