The biggest city in the region, Bari is a major port and a transit point for travelers catching ferries across the Adriatic to Greece, Croatia, and Albania. It's also a cosmopolitan city with one of the most interesting historic centers in the region. In recent years, it has become a major center of pilgrimage for Russian Orthodox visitors, due to its connection with St. Nicholas, the patron saint of Russia, as well as
of Bari. The old quarter of the city, around the Basilica and the harbor Castle, is a lively maze of whitewashed alleyways buzzing with bars, cafés, restaurants, and crafts shops. Most of the modern town is set out in a logical 19th-century grid, following the designs of Joachim Murat (1767–1815), Napoléon's brother-in-law and King of the Two Sicilies. The heart is Piazza della Libertà, where old and young gather in the evenings to stroll up and down and see and be seen.