Phanom Rung Sanctuary was constructed of pink sandstone in the rectangular layout. In the front is the mondop or antechamber connected to the principle pagoda by Antrala or the annex. Double porches lead out in all directions to the main tower. The middle inner sanctum is called "Kanpakaruha Chamber" where "linga", the divine symbol of Shiva, is believed to be enshrined. Currently, only the "somasutra" remains which was used to drain water during religious rites.
Two brick pagodas and the minor pagoda compound in the northeast and southwest of the principal pagoda. From architectural and fine arts evidence, these three pagodas were built around the 15th – 16th Buddhist century consecutively. There are also two laterite Bannalais, a repository or library for storing sacred Hindu manuscripts, in the northeast and southwest front of the principal pagoda.
There are carvings depicting about Hinduism at the gables and lintels of the principal pagoda such as the dancing Shiva, Vishnu Anantasayin, the reincarnation of Vishnu as Rama in Ramayana or Krishna, ceremonies, hermit or yogi life, etc.