Subscribe to CNN Travel’s weekly newsletter, Unlocking the World, to receive top updates on travel hotspots, the aviation industry, culinary highlights, and lodging trends. This week’s travel highlights include the surprising reason behind different fork techniques in Europe and the U.S., a Mediterranean island where cats outnumber humans, and a dramatic rescue on the tallest Alpine peak. Destination Highlights The island of Palmarola, not far from Rome, offers a remarkable escape. Though it’s