Symphony of the Seas is now the world's largest cruise ship
The world's largest cruise ship, Symphony of the Seas, was delivered to Royal Caribbean at the STX France shipyard in Saint-Nazaire, France. The latest Royal Caribbean International ship took three years to complete and enlisted the work of 4,700 shipbuilders and crew. Symphony of the Seas takes the title world’s largest cruise ship of her sister ship of the Oasis Class, Harmony of the Seas.