The Buddhist stupa of Boudhanath dominates the skyline. The ancient Stupa is one of the largest in the world. The influx of large populations of Tibetan refugees from China has seen the construction of over 50 Tibetan Gompas (Monasteries) around Boudhanath. As of 1979, Boudhanath is a UNESCO World Heritage Site. Along with Swayambhunath, it is one of the most popular tourist sites in the Kathmandu area.