The Ancient City in Samut Prakan (Muang Boran)
The Phanom Rung Stone Sanctuary is located in Nang Rong, Buri Ram Province, at the mouth of an extinct volcano. Built in accordance with Hinduism beliefs of the Shiva sect, the sanctuary had been constructed and used as a religious center for years.
The construction presumably began around the 9th century A.D. and finished within the 11th century A.D. When King Jayavarman VII adopted Mahayana Buddhism, the function of the Hindu sanctuary had been changed to serve as a Mahayana monastery.