6. Capri, Italy
A lister favourite, features of Capri island include the Marina Piccola (the little harbor), the Belvedere of Tragara (a high panoramic promenade lined with villas) and the limestone crags called sea stacks that project above the sea (the Faraglioni). Have a wander through the hanging gardens and roads, ruins of Greek and Roman villas and visit the medieval castle – while you're not lying back in paradise, of course.