The construction industry in Cambodia rose in the Funan period, and then architectural art developed greatly and reached its peak in the Angkor period. Temples were the dominant form of ancient Khmer architecture, and Cambodians have long worshipped temples as the abode of the gods. Most of the temples built by people are used to worship the gods in Brahmanism, such as Shiva, Indra, Vishnu, etc.; Buddhist temples are used to worship Buddha, and some temples are dedicated to the ancestors of kings or other heroes built.