Prasat Kok Rokar is located in Rokar Phum, Srayov Commune, Stung Sen District, Kampong Thom province in a 14-km distance from Provincial Town of Kampong Thom. The temple was built of sandstone and laterite in Khleng style at the end of 11th century during the reign of king Suryavarman I to dedicate to Siva.

This isolated sanctuary (dimension: 6m x 5m; 8m height) was built on the hill and faced to the east. The body of the central temple has conical form with porches opening to the east, and a door reached from the eastern entrance (three other doors were the false doors). The diamond column has octagonal forms, and the three lintels have various forms. Based on the study to the site, the sanctuary was formed in rectangular shape. The outside rampart has 25m x 25m size and Gopura from the four directions which jointed to the surrounding laterite rampart. Outside the rampart, there were likely moats surrounded as we saw some marks remain until now. In observation to the temple?s court, there were lintels and inscriptions available at the surrounding. The lintels has various style some in Sambor Prei Kuk, some in Prei Khmeng and some in Kulen style etc. This didn?t mean that the artists built the mixed styles. According to the elderly resident there said that during the French colony in Cambodia, these ancient objects were brought from other temples to gather here in preparing to break into small parts that would then be used to pave the roads, but they didn?t construct the roads yet due to the war happened in the Country that why these ancient objects remained there.

On the hill 1km from the temple, where they held midnight ceremony every full moon day with making virgin girls dancing around the fired place to pray for the rain. This ceremony could be participated by virgin girls only.