A Britisher Alexander Rea unearthed Sankaram, a 2000-year-old Buddhist Heritage site in 1907. Located 40 km from South of Vizag, locally it is known as Bojjannakonda. The three phases of
Buddhism, 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. several clay tablets bearing figures of Buddha etc. Bojjannakonda, the Eastern one bears richer architecture of the two hills. It presents a picturesque appearance with its Main Stupa on the hilltop and dominating myriads of stupas, mostly rock-cut and rarely brick-built, one above the other.