Demise of ancient city unearthed

Associated Press
In this photo taken on May 11, 2011, Western tourist and others climb to the top of the 10th century temple Bakheng in the Angkor Wat complex near Siem Reap, Cambodia, to view the setting sun.  A traffic jam of up to 3,000 tourists surges up a steep hillside, trampling over vulnerable stonework and quaffing beer at a sacred hilltop that provides spectacular sunset views of the massive beehive-like towers rising from the main temple in this ancient city: Angkor Wat. Cambodian Tourism Minister Thong Khon says some 6 million visitors per year are projected by 2020. (AP Photo/David Longstreath)

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The ancient city of Angkor — the most famous monument of which is the breathtaking ruined temple of Angkor Wat — might have collapsed due to valiant but ultimately failed efforts to battle drought, scientists now believe.

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