Pictures of Angkor Wat Temple in Cambodia. Angkor Wat Temple is regarded as the largest religious building in the world and is also the largest Hindu Temple in the world. Built in classical style of Khmer architecture, the temple complex was built in the early 12th century for King Suryavarman II. Angkor Wat Temple was dedicated to Lord Vishnu and then the temple was one of the prominent worship site by Buddhist. Angkor Wat Temple Complex is now preserved as a World Heritage Site.