THE WORLD ATLAS

Culture · c. 1113–1150 CE

Angkor Wat and the Khmer Empire

Angkor (Siem Reap, Cambodia)

The Khmer kings who ruled from Angkor from 802 built a vast 'hydraulic city' of reservoirs and canals; a 2007 survey found it was the largest pre-industrial city by area, with infrastructure spread over at least 1,000 km². King Suryavarman II (r.

1113–c. 1150) built Angkor Wat, a temple to Vishnu that is the largest religious complex in the world, and from 1181 Jayavarman VII added the walled city of Angkor Thom and made Mahayana Buddhism the state religion.

See it on the map

Why it mattered

Angkor shows the scale a tropical rice-farming civilization could reach; it remained the Khmer capital until Ayutthaya sacked it in 1431 and much of its population moved south.

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