14 Aug 2007 (The Daily Telegraph) – The article also features a slideshow of images that you should also check out.
Researchers map Angkor’s ancient sprawl
By Roger Highfield, Science Editor
The largest urban sprawl on the planet in medieval times was in fact 10 times bigger than thought, rivalling the size of Greater London.
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