Nagarjunasagar is perhaps India's first island-museum. The chain of human evolution in India, right from the Prehistoric to the Medieval times have been represented here. The main attractions here are Simhala Vihara, a monastery for Ceylonese monks and Mahastupa, one of the oldest structures on the island that contains few corporal relics of Lord Buddha. There is an architectural museum containing several idols and statues, figures of yakshis, coins, pottery, a model of the submerged valley, and exhibits dating back to the Stone Age.