MSC Magnifica: 21-Night World

Genoa cruise port is one of the main embarkation points for western Mediterranean itineraries, particularly for MSC and Costa Cruises, which both have roots here. The city is the capital of Liguria and the birthplace of Christopher Columbus, pesto, and focaccia, and it has a grittier, more working-class feel than the polished Italian cities most tourists flock to.

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.

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.

Gibraltar is a British Overseas Territory at the southern tip of the Iberian Peninsula, a 6.7-square-kilometer enclave dominated by the Rock of Gibraltar, a 426-meter limestone monolith that guards the western entrance to the Mediterranean.

Rio de Janeiro is one of the most visually dramatic cities on earth, set between granite peaks, tropical forest, and Atlantic beaches. The city of about 6.

Buenos Aires is Argentina's capital and the primary embarkation port for cruise itineraries to Patagonia, the Falkland Islands, Antarctica, and around South America. The cruise terminal (Terminal de Cruceros Benito Quinquela Martin) is in the Puerto Madero/La Boca area on the Rio de la Plata, about 3 km from the city center.