The Angkor Wat was a group of temples built by the Khmer empire in the 12th century.
Angkor Wat means ‘temple city’ and the name fits, because it’s one of the biggest religious monuments in the world, covering more than 160 hectares (400 acres).
Building the temple (in what is now the country of Cambodia) took more than 30 years, and involved 300,000 workers and more than 6,000 elephants!
Angkor originally started as a Hindu temple, but was later transformed into a Buddhist temple near the end of the 12th century.