By Ali Halit Diker, CNN (CNN) — Muğla in southwestern Turkey delivers exactly what travelers expect from this corner of the Mediterranean: sunlit coastlines, rugged mountains and the ruins of long-fallen empires. Yet beyond these well-trodden attractions, it hides something far less familiar — a place that attracts a secretive, devoted stream of visitors for reasons that have little to do with rest and relaxation. About an hour’s drive north of …