Royal Caribbean's Wonder of the Seas during the day and at night. Joey Hadden/Business Insider Royal Caribbean's Wonder of the Seas is one of the largest cruise ships in the world. When the sun goes down, the ship glows with bright, color-changing lights on its outdoor decks. Take a look at how the cruise ship transforms with vibrant colors at night in side-by-side photos.  After taking my first cruise on Royal Caribbean's Wonder of the Seas, I think the ship might be even more beautiful at ni