An Angkorian temple dating from the 11th century, containing a standard assortment of Angkor architecture. Some of the mausoleums are open to tourists and contain piles of bones and skulls from the Khmer Rouge's genocidal reign. Inside one of the buildings is a very elaborate series of wall paintings, depicting torture and executions (of a religious nature), followed by scenes of heaven and the afterlife. This is not always an accessible building, as a monk has to unlock it for you. He usually does, though your driver may ask you to refrain. The tourist police may ask you for money for their own purposes. If you are stingy, you can enter the temple from the other side for free. Don't miss the beautiful sunset in the old Angkorian ruins. The visit to this site can easily be combined with a trip to Pros and Srei Mountains.