Swayambhunath (स्वयम्भूनाथ स्तुप) is an ancient religious complex atop a hill in the Kathmandu Valley, west of Kathmandu city. It is also known as the Monkey Temple as there are holy monkeys living in the north-west parts of the temple. The Tibetan name for the site means 'Sublime Trees'.
For the Buddhist Newars in whose mythological history and origin myth as well as day-to-day religious practice, Swayambhunath occupies a central position, it is probably the most sacred among Buddhist pilgrimage sites. For Tibetans and followers of Tibetan Buddhism, it is second only to Boudhanath.
The Swayambhunath complex consists of a stupa, a variety of shrines and temples, some dating back to the Licchavi period. A Tibetan monastery, museum and library are more recent additions. The stupa has Buddha's eyes and eyebrows painted on. Between them, the number one (in Devanagari script) is painted in the fashion of a nose. There are also shops, restaurants and hostels. The site has two access points: a long stairway with 365 steps, leading directly to the main platform of the temple, which is from the top of the hill to the east; and a car road around the hill from the south leading to the southwest entrance [Wikipedia.org]