Changu Narayan is the ancient Hindu temple of Lord Narayan (Vishnu) which is located on a high hilltop that is also known as Changu or Dolagiri, Bhaktapur district of Nepal. The temple is surrounded by forest with champak tree and a small village, known as Changu Village. The Manahara River flows beside the hill. This temple is considered as the oldest temple in Nepal. Changu Narayan Temple is on the list of world heritage sites. The valuable stone sculpture and ancient inscriptions have archeological, historical and cultural significance. There is also the big single rice is placed on the front part of Changu Narayan Temple which carries traditional values. A story of Changu Narayan goes like this, in ancient time a cow herder, had brought a cow from a Brahman. The cow was known for producing large quantity of milk. He used to take the cow to Changu for grazing. At that time Changu was a forest of Champak tree. While grazing the cow it always went to the shade of a particular tree. In the evening when the cow herder took the cow home and started milking the cow he got only very few amount of milk. This continued several days. He became very sad so he called the Brahmin and told him that the cow is not giving enough milk. Brahmin after observing the fact from his own eyes then planned with the herdsmen to inspect the activities of cow during the day while she was grazing in the forest. Both Brahmin and cow herder hide themselves behind the trees and spectator the activities of the cow. The cow went into the shade of a particular champak tree. To their surprise a small black boy came out from the tree and started drinking the cow milk. Both became very furious and they thought that the boy must be the devil and tree must be its home. So Brahmin cut down the champak tree. When the Brahmin was cutting down the tree a fresh human blood came out from the tree. Both Brahmin and herder became worried and they thought that they have committed the great crime and they started crying. From the tree lord Vishnu emerged out and he told the Brahmin that it was not their fault. Lord Vishnu told them the story that he had committed a terrible crime by killing Brahman's father unknowingly while hunting in the forest. After that he was cursed for the crime. He then wandered on earth on his mouth, the ‘Garuda’ eventually descending on the hill at Changu. There he lived in anonymity, surviving on milk stolen from a cow. When Brahmin cut down the tree, lord Vishnu was beheaded which freed Lord Vishnu from his sins. After hearing these words from Vishnu, Brahmin and cow herdsman started worshipping the place and they established a small temple in the name of Lord Vishnu. Ever since that day, the site has been held sacred.