Viking Mars: 12-Night Mediterranean from Barcelona

Barcelona cruise port is the busiest in the Mediterranean, handling millions of passengers a year across multiple terminals. The city behind it earns that traffic.

Marseille cruise port is France's busiest and one of the major stops on western Mediterranean itineraries. The city is France's second largest and its oldest, founded by Greek sailors over 2,600 years ago, and it has a rougher, more authentic edge than the polished Riviera towns further east.

Monaco is a sovereign city-state on the French Riviera, just 2 square kilometers in size with about 39,000 residents, making it the second-smallest country in the world. Monte Carlo, its most famous district, is synonymous with wealth, casinos, and Formula 1 racing.

Florence (Livorno) cruise port is the main Tuscan stop on Mediterranean itineraries, but it's worth being clear about what you're actually docking at. The port is Livorno, a working industrial city on the Ligurian coast, about 85 kilometers west of Florence.

Rome's cruise port is in Civitavecchia, a working port town about 80 kilometers northwest of the city. That distance is the single most important thing to understand about this stop.

Naples cruise port is one of the most popular stops on Mediterranean itineraries, and it's easy to see why. The city sits on the Bay of Naples with Mount Vesuvius looming behind it, and it serves as the gateway to Pompeii, the Amalfi Coast, Capri, and Sorrento.

Corfu cruise port is one of the most visited stops on Eastern Mediterranean and Greek Islands itineraries. The island sits off Greece's northwestern coast, just a short ferry ride from the southern tip of Albania, and has a distinct cultural identity shaped by centuries of Venetian, French, and British rule rather than the Ottoman history that dominates other Greek islands.

Dubrovnik cruise port is the southern gateway to Croatia's Adriatic coast and one of the most visually striking stops in the Mediterranean. Ships dock at Port Gruž, about 3 kilometers northwest of the Old Town, with the walled medieval city perched on a rocky peninsula jutting into the sea.

Split cruise port is the main gateway to central Dalmatia and one of the most remarkable cities in Croatia. The city is built around and inside Diocletian's Palace, a 1,700-year-old Roman fortress that the emperor built as his retirement residence around 300 AD.