Boudhanath Stupa, located in Kathmandu, Nepal, is one of the largest and most significant stupas in the world. It is a UNESCO World Heritage Site and a prominent center of Tibetan Buddhism outside Tibet. The stupa is adorned with colorful prayer flags, intricate carvings, and Buddha eyes on all four sides, symbolizing wisdom and compassion. Boudhanath is a bustling hub of religious activity, with pilgrims circumambulating the stupa, spinning prayer wheels, and offering prayers. It is also surrounded by monasteries, shops selling Tibetan artifacts, and cafes, making it a vibrant cultural and spiritual destination in Kathmandu.