Amazing Swimming Pool Inventions you didn’t know ExistedCruise ships are floating cities made with luxury in mind. These enormous ships ferry people around on sapphire waters all over the globe as they head to some of the most stunning locations on the planet. But not all cruise ships are created equal. In fact, some are truly magnificent and insanely decked floating cities. With that in mind check out these top 20 most insane cruise ships in the world.