Turkey's mysterious 'portal to the underworld'Turkey's mysterious 'portal to the underworld' External linkIn Pamukkale in western Turkey, an enormous white rock formation towers over the surrounding plain. The gleaming mountain of petrified limestone cascades to the valley floor, creased with frozen stalactites and tessellated with hundreds of pools of sparkling turquoise water.Tagsancient greeceancient romegaslegendpoisonturkeyvolcanoContent typeLINK