It’s quadruplets! The world’s biggest cruise ship gets three super-sized sister ships

In our travel roundup this week: the European capital with an underwater labyrinth beneath its streets, why an Abu Dhabi surf company believes it’s found “the perfect wave,” plus the rise and rise of XXL cruise ships.

​ In our travel roundup this week: the European capital with an underwater labyrinth beneath its streets, why an Abu Dhabi surf company believes it’s found “the perfect wave,” plus the rise and rise of XXL cruise ships. Read More Breaking News, Latest News and Videos | CNN