Ladies and gentlemen, has Royal Caribbean done it again? Has the line's sixth Oasis Class ship, Utopia of the Seas, somehow managed to be even more innovative than its five predecessors?

The class features 20-deck ships that weigh around 250,000 gross tons — about 15,000 more gross tons than the six Oasis-class ships the line sails. Icon-class ships can sail with nearly 8,000 ...