Description : The Ruwanwelisaya stupa, located in the sacred city of Anuradhapura. This massive, white hemispherical structure is one of the world's tallest monuments, originally built in the 2nd century BCE by King Dutugemunu. It is considered highly sacred to Buddhists worldwide, housing many relics of the Buddha. The site is a major pilgrimage destination, often crowded with devotees dressed in white offering flowers and prayers. Monks dressed in traditional saffron robes are a common sight, contributing to the spiritual atmosphere of the temple grounds. Sri Lanka.