First off, not every pick on our list is indeed a "place," per se. One is actually a scientific phenomenon, while another is considered a massive living organism home to more than 1,500 fish species and nearly 3,000 individual coral reefs. Several are wide-open spaces, but a few are brick-and- mortar sites built for kings (and in one case, a queen). Three have been included on the listing of the Seven Natural Wonders; three were also selected for the listing of the New 7 Wonders of the World. But no matter how you slice and dice them, all 10 have something important in common: Sometimes, it is all about what pleases the eye. Here's our list of the World's Prettiest Places. Plitvice Lakes National Park Plitvice Lakes National Park, Croatia Croatia Our next selection is largely unknown to tourists from the United States, and perhaps that makes it even more precious. The limestone caves of the Plitvice Lakes National Park make the water of its 16 lakes and a han