The world's largest cruise ship is Royal Caribbean's Symphony of the Seas. It's 1,188 feet long, which is about four times the height of the Statue of Liberty. Ethiopia uses a different calendar than the rest of the world. Although it's a solar calendar, so it's 365 or 366 days, it has 13 months instead of 12 and is 7-8 years behind the Gregorian calendar. The most expensive dessert in the world is the Frrrozen Haute Chocolate ice cream sundae, available from Serendipity 3 in New York City for $25,000. If you visit Ibiza, Spain, you can dine at the world's most expensive restaurant, Sublimotion, which is not just a meal but an EXPERIENCE. There's a laser light show involved. The Eiffel Tower has a staff of 340 people. Two independent states, Vatican City and San Marino, are located entirely within the borders of Italy.