Koh Ker (Khmer: ប្រាសាទ កោះ កេ រ្ដិ៍) is a remote archaeological site in northern Cambodia, about 120 kilometers (75 mi) away from Siem Reap and the ancient site of Angkor. It is a very crowded area of ​​jungle that is sparsely populated. More than 180 shrines were found in a protected area of ​​81 square kilometers. Only about two dozen monuments can be visited by tourists because most of the shrines are hidden in the forest and the whole area is not completely cleared.

Koh Ker is the modern name for a major city of the Khmer empire. In the inscriptions, the city is mentioned as Lingapura (city of lingams) or Chok Gargyar [70]: 70 (sometimes translated as city of glance, [3] sometimes as forest of iron).

Under the reign of Kings Jayavarman IV and Harshavarman II Koh Ker was briefly the capital of the entire empire (928-944 AD). Jayavarman IV forced an ambitious construction program. A huge water tank and about forty temples were built under his rule. The most important temple complex, a double sanctuary (Prasat Thom / Prang), follows a linear and non-concentric plane like most of the temples of the Khmer kings. Unparalleled is the seven-tier, 36-meter (118-foot) high pyramid, which probably served as a state temple [4]: ​​Jayavarman's 103rd. Really impressive are also the shrines with the two meters 6 feet 7 in tall slings.

Under Jayavarman IV, Koh Ker's style was developed and the art of sculpture reached a pinnacle. A wide variety of wonderful statues were carved. Because of his remoteness, Koh Ker's site was looted many times by looters. Koh Ker sculptures can be found not only in different museums, but also in private collections. Koh Ker masterpieces are offered occasionally at auctions. These pieces in current times are considered stolen art.

The site is about two and a half hours away from Siem Reap, and basic visitor facilities are being built. This makes Koh Ker very attractive for anyone who wants to experience solitary temples partially covered by forest.