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Preserving a world wonder

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Thanassis Stavrakis, Associated Press

Despite visible signs of repair work, throngs of tourists visit the 2,500-year-old Parthenon Temple on the Acropolis hill in Athens, Greece, on Thursday. A massive conservation and restoration program is under way on the ruined marble building, which was originally dedicated to the goddess Athena. The project is scheduled for completion in 2020.