P Koh Ker is a remote archaeological site in northern Cambodia about 120 kilometres (75 mi) away from Siem Reap. A jungle filled region that is sparsely populated. More than 180 sanctuaries were found in a protected are of 81 square kilometres. Two dozen monuments can be visited as most of the sanctuaries are hidden in the forest. 

Jayavarman IV enforced an ambitious building program. An enormous water-tank and about forty temples were constructed under his rule. The most significant temple complex, a double sanctuary (Prasat Thom/Prang), follows a linear plan and not a concentric one like most of the temples of the Khmer Kings.