Dubrovnik is a city in southern Croatia fronting the Adriatic Sea. It’s known for its distinctive Old Town, encircled with massive stone walls completed in the 16th century. Its well-preserved buildings range from baroque St. Blaise Church to Renaissance Sponza Palace and Gothic Rector’s Palace, now a history museum. Paved with limestone, the pedestrianized Stradun (or Placa) is lined with shops and restaurants.