Royal Caribbean International is a global cruise brand with 23 ships currently in service and two under construction. The line also offers unique cruise tour vacations in Alaska, Asia, Australia, Canada, Europe, South America and New Zealand. In 1968, Royal Caribbean Cruise Line was founded – and ever since then, have been changing the way the world cruises. They have steadily rolled out innovative ships since the 1980s with Sovereign class to today, with the introduction of the game-changing Quantum class, the last of which already sails since the Spring 2015.