Angkor Thom-Siem Reap

Angkor Thum, royal city and Buddhist temple complex at Angkor, the region that served from 802 until 1295 as the capital of the Khmer Empire of Cambodia. Khmer king Jayavarman VII, who reigned in the late 12th and early 13th centuries, began building the vast monument at Angkor Thum (Khmer for "Angkor-the-Great" or "Great City") after he had regained control of the Angkor region from the Cham army of northern Cambodia, which had seized it around 1177.

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