This stupa is the oldest of its kind in Nepal and has numerous shrines and monasteries on its premises. Swayambhu literally means "self-existent one". Believed to date back to 460 A.D., it was built by King Manadeva and by the 13th century, it had become an important center of Buddhism. This sacred pilgrimage site is also home to hundreds of monkeys considered holy to Tibetan Buddhists and Hindus. According to legend, Manjushree, the bodhisattva of wisdom, was in the process of raising the temple hill when the lice in his hair transformed into these monkeys.