Banteay Srey temple in Angkor Wat, Cambodia. October 28,2005. Angkor Wat (or Angkor Vat) is a temple at Angkor, Cambodia, built for King Suryavarman II in the early 12th century as his state temple and capital city. The largest and best-preserved temple at the site, it is the only one to have remained a significant religious centre since its foundation??irst Hindu, dedicated to Vishnu, then Buddhist. The temple is the epitome of the high classical style of Khmer architecture. It has become a symbol of Cambodia, appearing on its national flag, and it is the country's prime attraction for visitors.