Bakong was consecrated in 881 under the King Indravarman I. It is located in Roluos area, where was located Hariharayala, former capital at the end of the 8th century. It is the first major mountain temple built in the Angkor Site. Its size is considerable (900 x 700 meters). Particular attractions: the 3 enclosures, the pyramid, the ground level sanctuaries and the lintels.