Ruwanulesaya is a dome-shaped temple erected as a Buddhist shrine, which is known as a "stupa", a hemispherical structure containing artifacts in Sri Lanka, and this temple is considered one of the holy places for many Buddhists around the world, this temple was built in 140 BC It was discovered as one of the distinctive and exceptional monuments and was officially opened as a Buddhist temple in 1840 AD after collecting donations. from around the world.