Phanom Rung (Thai: พนมรุ้ง, pronounced [pʰānōm rúŋ]), or full name, Prasat Hin Phanom Rung (Thai: ปราสาทหินพนมรุ้ง – Phanom Rung Stone Castle), is a Khmer temple complex set on the rim of an extinct volcano at 402 metres (1,319 ft) elevation, in Buriram Province in the Isan region of Thailand. It was built of sandstone and laterite in the 10th to 13th centuries. It was a Hindu shrine dedicated to Shiva, and symbolises Mount Kailash, his heavenly dwelling.
Thailand's Department of Fine Arts spent 17 years restoring the complex to its original state from 1971 to 1988. On 21 May 1988, the park was officially opened by Princess Maha Chakri Sirindhorn. In 2005, the temple was submitted to UNESCO for consideration as a future World Heritage Site.