Preah Khan ("Sacred Sword") was built in 1191 as a monastery and school by King Jayavarman VII (reigned 1181-1220), who dedicated it to his father Dharaindravarman. This 138-acre Buddhist complex served as the nucleus of a temple community that included Neak Pean and Ta Som, which are located along Jayataka Baray, the last of the great reservoirs constructed at Angkor. The garuda is the symbolic guardian and protector of Preah Khan. There are 72 of these 5-meter high statues along the wall that surrounds Preah Khan. Each garuda holds in either hand a three-headed naga. In Hindu mythology, the half-man, half-bird figure is the mount of Vishnu and is the mortal enemy of the naga. Buddhist mythology aligns the two here as protectors of the ground and water (naga) and the heavenly realm (garuda).