Serendipity 3 is a perennial favorite, and it's easy to see why. It seems concocted out of a child's dream, with an entrance chockablock of toys and candy. The waitstaff puts on a hilarious show, and the menu is laden with fantasy dishes, including the scrumptuous frozen hot chocolate. Everything here is oversized and outrageous, and that's what makes for so much fun. Prices are high, but this sort of (over-)indulgence doesn't come cheap.