United States, Bahamas, Jamaica, Cayman Islands, Mexico

MSC Cruises may be headquartered in Switzerland, but the ambience onboard its 23 ships is very much Italian owing to its owners, the Aponte family.

Ships feature a two-storey Mediterranean-style promenade and Instagram-worthy glass staircases filled with Swarovski crystals.

The line’s flagship is the 6,327 passenger MSC Euribia, which is MSC's second ship to run on liquefied natural gas.