Royal Caribbean International is a company which operates large cruise ships to destinations all over the world. The company was originally founded in 1968 in Norway, but its headquarters have since moved to Miami, Florida. The company currently operates the largest seagoing vessel in the world, the Allure of the Seas, as well as operating 41 other vessels. The company's first vessel was named the MS Song of Norway. Since 1991, all of Royal Caribbean's vessels have their names ending with 'of the Seas'. Some of the most prominent features on the more recent vessels include the 'Climbing Wall' and the 'FlowRider'.