The Ilısu Dam will cause the river to rise some 200 feet, submerging this modern café, the ruins of the 900-year-old bridge behind it, and Neolithic caves ... Dam is Turkey’s largest.
had begun his expedition into Morca Sinkhole cave — the third-deepest cave in Turkey, with a depth of 4,186 feet — on Saturday when he experienced gastrointestinal bleeding, according to NBC News.