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Tourists walk through an entrance of the famed Angkor Wat in eastern Siem Reap province, some 230 kilometers (143 miles) northwest Phnom Penh, Cambodia, Saturday, July 2, 2011. Siem Reap is Cambodia's main tourist destination where famed Angkor temples are located. (AP Photo/Heng Sinith)

Mystery of Angkor Wat

One of the ancient world's lingering mysteries has been solved.