Phanom Rung Historical Park is an archaeological site in Thailand, covering the ruins of Prasat Phanom Rung (Thai: ปราสาทพนมรุ้ง, pronounced [prāː.sàːt pʰā.nōm.rúŋ]), a Hindu Khmer Empire temple complex set on the rim of an extinct volcano at 402 metres (1,319 ft) elevation.

It is located in Buriram Province in the Isan region of Thailand, and was built at a time when Khmer social-political influences were significant in Srisaket.

The Phanom Rung sanctuary compound was constructed over several phases, dated by means of iconography of its art and architectural styles together with its inscriptions.

Further sacred buildings built in the reign of King Jayavarman VII in 13th century, including the Royal attire Changing Pavilion, the Kudi Rishis of Nong Bua Ray, the medical centre or hospital (Arokayasala) and Prasat Ban Bu, a rest house with fire where travelers could shelter (Dharmasala) on the plain at the foot of Phanom Rung, alongside the road linking Angkor and Phimai.

Phanom Rung is an extinct volcano 386 metres (1,266 ft) in elevation in Ta Pek subdistrict, Chaloem Phra Kiat district, Buriram.

Apart from the main tower, other buildings in the compound are: One of the most well-known elements of the temple is a decorative lintel placed above the eastern entrance to the central sanctuary.

It had been stolen from the temple site in the 1960s and was acquired by the museum in 1967, where it was displayed for over twenty years, described as "the Birth of Brahma with Reclining Vishnu on a Makara".

[5] The Thai government entered negotiations with the museum, which was unwilling to consider an unconditional return, since it had acquired the item in good faith.

Finally, in October, the museum agreed to repatriate the lintel in exchange for a donation from the Chicago-based Elizabeth F. Cheney Foundation.

[6] The lintel's arrival in Thailand on 10 November was widely celebrated, and was covered live on the national TV pool.