Narayan, or Vishnu, is the preserver of creation to Hindus. His temple near Changu village is often described as the most ancient temple in the Kathmandu Valley. A fifth century stone inscription, the oldest to be discovered in Nepal, is located in the temple compound and it tells of the victorious King Mandev. The temple now covers sixteen hundred years of Nepalese art history. The temple, built around the third century, is decorated by some of the best samples of stone, wood, and metal craft in the Valley. In the words of one tourist guide, "When you look upon Changu Narayan, you observe the complete cultural development of the Valley."

On the struts of the two-tiered Changu Narayan Temple, are the ten incarnations in which Narayan destroyed evil-doers. A sixth-century stone statue shows the cosmic form of Vishnu, while another statue recalls his dwarf incarnation when he crushed the evil king Bali. Vishnu as Narsingha disemboweling a demon is particularly stunning. The western bronze doors sparkle in the evening sunlight, dragons decorate the bells, and handsome devas stare from the walls. Garuda, half man and half bird, is the steed of Vishnu, and his life-sized statue kneels before the temple. The favourite of many tourists is the statue of Vishnu sitting astride his steed.