Neak Pean  ("The entwined serpents") at Angkor, Cambodia is an artificial island with a Buddhist temple on a circular island in Preah Khan Baray built during the reign of King Jayavarman VII. It is the "Mebon" of the Preah Khan baray

Neak Pean ia a tiny temple and was built by Jayarvarman VII. The King ordered the construction of a vast baray (reservoir) east of Preah Khan temple to provide water to its hundred-thousand support workers. Stretching a half kilometer by 900 meters the artificial lake stored millions of cubic meters of water to irrigate the rice fields during the dry season. Neak Pean (originally called 'Rajasri' but took its modern name which means 'coiled serpents' from the encoiled nagas that encircled the temple), sits at the center of this baray. It once consisted of a square pond, measuring 70m x 70m, surrounded by four smaller ponds, which in turn were surrounded by eight more ponds. At the very center of the complex was a tiny island with a single tower made of sandstone. The significance of Neak Pean is not known, however experts beleive that Neak Pean represents Anavatapta, a mythical lake in the Himalayas whose waters are thought to cure all illness. During the dry season when the water is low look out for the animal and human head waterspouts at the outside center of each pool. Neak Pean is most photogenic in the wet season when the pools are full.