The park is one of the grandest and certainly the most famous Khmer historical site in Thailand. It was one of several sites where pilgrims traveling between the Khmer/Angkor kingdom and India could seek sanctuary.
Despite the Phimai Historical Park being under the same regional head of national parks as Khao Phanom Rung (another famous Khmer sanctuary), the staff at Phimai are more willing to listen to arguments that foreign visitors can enter paying a “Thai” ticket price of 20 baht instead being forced to pay 150 baht.
The Phimai Sanctuary is rectangular in shape, 565 meters wide and 1,030 meters long. It consists of ornately carved structures made of sandstone and laterite. From stone inscriptions and the architectural style, it is surmised that the Phimai Sanctuary was built at the end of the 11th century.