Its Adriatic seaside lined with palm trees, Split is the largest and most important city in Dalmatia, and custodian of the riches of culture and history found within and around the walls of the Roman emperor Diocletian’s palace. Begun in 295 AD as an imperial residence and fortified camp, its twisting cobblestone byways reveal churches and chapels both Romanesque and Gothic, and older places of worship such as the Temple of Jupiter. The old town is remarkably well preserved, and is full of museums, art galleries, and cozy cafes where you can pause along your way.