Aerial photographs show the remains of a rectangular city measuring 2.3km by 1.8km,surrounded by double earthen walls on three sides and protected on the east by the Mekong River.Other traces of the old city include small baray(a Khmer word meaning:usually used for ritual purposes),The foundations for circular brick monuments,evidence of an advanced system of irrigation.various Hindu statuary and stone carvings.stone implements and ceramics.The sum of all this is an extremely rare example of an ancient urban settlement in Southeast Asia,one whose design reveals how important religious belief was in the workings of everyday life