Carpeted today with vegetation, obscured by a cloak of low-lying cloud and raided by thieves, Angkor in Cambodia once thrived between the 9th and 16th centuries, reaching a peak of many hundreds of thousands of people in the 13th century
Today, in the Proceedings of the National Academy of Sciences, a new map reveals its heart spread over 400 square miles - compared with Greater London's 600 square miles - and the associated sprawl extended out another several hundred square miles.
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©PNAS
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''Village temple'' configuration at Angkor
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