With each passing year, cruise ships grow more opulent and extravagant, with everything from retractable ceilings to butler's pantries. The cream of the crop rival some of the world's best hotels, and have price tags to match. (One of the ships on this list even commands six-figure fares.) While a fun cruise can be had relatively inexpensively, if you want to sail in style on your next cruise — or just daydream about how the other half lives — here are some of the most lavish options.
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