A Britisher named Alexander Rea in 1907 unearthed Sankaram, which is a 2000-year-old Buddhist Heritage site. Located at a distance of 40 kilometers from South of Vizag, it is locally known as Bojjannakonda. The three phases of Buddhism viz. Hinayana, Mahayana & Vajrayana flourished here. This complex is famous for its numerous Monolithic Votive Stupas, Rock cut caves, and brick build structural edifices. Excavations yielded several historic potteries, Satavahana coins dating back to the 1st century A.D. and several clay tablets bearing figures of Buddha.
The Eastern Bojjannakonda features richer architecture of the two hills. It presents a picturesque appearance with its Main Stupa on the hilltop along with dominating myriads of stupas, mostly rock-cut and rarely brick-built, one above the other. Almost every outcrop and protuberance has been converted boldly into a stupa. Similarly at Lingalakonda, there are innumerable rock-cut monolithic stupas in rows spread all over the hill. Other attractions here include a Maha stupa nearby which yielded a relic casket, 3 chaitya halls, votive platforms, stupas and vajrayana sculptures. A gold coin of Samudragupta dating back to the 4th century AD was also found at this place. This Vihara was active for about 1000 years, spanning the Theravada, Mahayana and Vajrayana phases of Buddhism. This place offers a glimpse into the rich Buddhist heritage and culture and which is highly appealing to the tourists.