The historic center of Nepal lies in the Kathmandu Valley where two of the world's great religions, Buddhism and Hinduism, intermingle in extraordinary old temples and shrines. Kathmandu is a fabled capital of convivial pilgrims and carved rose-brick temples, and a frenetic sprawl of modern towers, mobbed by beggars and monkeys and smothered in diesel fumes. Durbar Square with octagonal Krishna Temple, Swayambhunath Buddhist Stupa (Monkey Temple) - the most ancient and enigmatic of all the holy shrines in Kathmandu valley, The Great Stupa of Boudhanath.