The Buddhist sites spread across the length and breadth of the state. History of Buddhism in Odisha is described briefly so that visitors can know the glorious past of the state . Buddhism is believed to have it's presence in Kalinga from the life time of Buddha himself. Even some researchers claim about Lord Buddha's link with the state. Further, Odisha is the land of Padmasambhav, who is treated as 2nd Buddha / Tibetan Buddha, by many. The Buddhist structures of Odisha are architectural marvels and some places like, “Diamond Triangle” of Odisha (Ratnagiri, Udayagiri and Lalitgiri) are at par with Nalanda and Bodhgaya. Buddhist heritage of Odisha (earlier Kalinga) had always influenced several countries where many of the people still believe Kalinga as their ancestral land. The contribution of Odisha to convert Buddhism to world religion is immense. One should visit the important Buddhist heritage sites of the state which offers a unique glimpse in to the architecture, history and culture in the area of Buddhism. It will provide an enriching travel experience to the visitor, as it is the place through which Buddhism is known across the world.