A stork wheels over the ancient mosque, flying solo in a sky of seamless blue. Circling lower it executes a seemingly impossible landing on a nest precariously perched atop the minaret. Far below, the Tigris is flowing lazily towards Iraq, its sparkle extinguished by the lengthening shadow cast by cliff and citadel. This is Hasankeyf, fortress of rock, in Anatolia, Turkey’s far east. Dug into the southern slopes of the Raman mountains, the small town has for millennia guarded the river crossing, though perhaps not for much longer. “It is a jewel of history,” says my guide, Remzi Bozbay. “Soon it will become sunken treasure.”

Read More: Hasankeyf, Turkey: Soon-to-be Sunken Treasure