Angkor was the capital of the Khmer Empire from the early 9th century to the mid-15th century in what is now Cambodia. The name is also used in reference to the empire itself. As the religious, cultural, and administrative center of a prosperous and sophisticated kingdom, Angkor grew to be one of the world’s largest cities in the late 12th century (when it was known as Angkor Thom), comprising an estimated one million residents. Angkor’s kings erected magnificent temple complexes and constructed an intricate network of canals, moats, and barays (reservoirs). Today Angkor is recognized as one of the world’s most valuable cultural sites.
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