Boudhanath stupa is in Kathmandu, Nepal.One of the Most Important place of Tibetan Buddhism. The 36-meter-high stupa of Boudhanath is one of the huge stupas in South Asia. With countless monasteries surrounding it.Every Year Many people come for Boudhanath Stupa Tours. Late afternoon in Kathmandu, the Tibetans of Boudhanath slip out of their homes, shuffling quietly through dusty alleyways toward the white stupa festooned in prayer flags.