Located on the outskirts of Kathmandu, the Boudhanath Stupa's massive mandala makes it one of the largest spherical stupas in Nepal. In 1979 the Stupa was declared a World Heritage site. Tourists and Tibetan refugees alike flock to see the stupa which is said to contain the remains of Kassapa Buddha. Workers frequently climb the stupa to whitewash its surface and the base is surrounded by prayer wheels. When I was there many years ago hashish "salesmen" were focusing on sales to tourists at the base of the stupa. It was an odd mix of commerce and religion.