Prasat Yeai Poeun Group
The Prasat Yeai Poeun complex comprised a total of 22 sanctuaries (5 have octagonal shapes) with two wall rampart, and was built of brick, masonry, laterite and sandstone in rectangular from in 7th century (600-635) during the reign of Isanavarman I to dedicated to Shiva. They were built on a hill with Gopura from the eastern and western entrances joining to an outside laterite rampart. The inner rampart reached by gateways from the four directions and joined to the brick rampart carved in various clustering figures.
Along the sanctuary contained the eastern and western Gopura joined to the laterite rampart (304m x 274m or 83,296 square-meter surface). Gopura contained framed door with diamond columns and a lintel built of sandstone. Eastern Gopura contained a buried large inscription (size: 2.41m x 0,9m x 0,15) inscribed with 17 lines of script. This inscription was brought to be kept in Kampong Thom Museum.