The Kesariya Stupa is an ancient Buddhist monument located in the Kesariya village of Bihar, India. It is one of the largest stupas in the country, believed to date back to the 3rd century BCE during the reign of Emperor Ashoka. The stupa is a significant pilgrimage site for Buddhists and is known for its impressive height and historical importance. The structure is made of brick and features a circular base topped with a dome, symbolizing the Buddha's teachings. Excavations at the site have revealed various artifacts, including sculptures and inscriptions, which provide insights into the early Buddhist community and its practices.