““Religious structures represent just one facet of the precious art and architectural heritage of the Greek Isles, where splendid built sites vie with natural wonders for spectacular beauty and interest. Kárpathos and Kíthnos boast rows of picturesque windmills along a rugged coastline. On Santorini, whitewashed villas cling to precipitous cliffs, rising above a turquoise sea. Classical and earlier ruins are eerie reminders of the past on the now-uninhabited island of Delos, which, along with Athens, Olympia, and Delphi, was one of the most important sanctuaries of the ancient world.””