With a thrill every 100 yards and a photo-op at nearly every bend, the Costiera Amalfitana is about the most satisfying 30 miles of coastline to be found in tourist Europe. Serpentining its way south of Sorrento, its Amalfi Drive—the "road of a 1,001 turns"—threads a string of towns that glisten like pearls in a necklace. Locals dare you to conjure up places that are as lovely as Positano, Amalfi, and Ravello, even in your imagination.