Split being the second largest city in Croatia, is a mix of modern life and ancient history and yet it remains one of the Adriatic's most vibrant port cities, stunningly located between mountains and sea. As the economic and cultural center of the Dalmatian coast, Split is bustling with islanders who flock into the city to work even as ferries whisk tourists out to the islands. Diocletian's Palace, a World Heritage Site, is the main attraction but there are so many things to do, including day trips, world-class nightlife and restaurants that it's impossible to be bored. With ruins dating back to the Roman Empire, a bustling waterfront, and fresh seafood served daily at many of the restaurants in town, Split is well worth a visit on a tour through Croatia.