Bojjannakonda and Lingalakonda are two Buddhist sites which exist on adjacent hillocks near a village called Sankaram in Visakhapatnam district. The sites are believed to date between 4th and 9th Century A.D that was when at Sanakaram (Sangharam as it was called then) the 3 phases of Buddhism (Hinayana, Mahayana and Vajrayana) flourished.
- Bojjannakonda
This is the eastern hill is covered with a large group of monolithic stupas surrounding the rock-cut platforms of the Maha stupa The dome of the stupa is found constructed of brick.
Groups of rock-cut and brick stupas and small chaityas surround this stupa. On this hill there are six rock-cut caves of which some have sculptured panels. In general, each panel consists of a seated Buddha and attendants. There are also Terraced Chaitya’s present towards North of the Maha Stupa. These form the monastery for the Buddhist monk.
- Lingalakonda
The western hill is known as Lingalakonda is covered with a large number of rock-cut small stupas form the shape of a ridge.
Source:
http://en.wikipedia.org/wiki/Bojjannakonda