In the chronicle of Sri Lanka tells that king Davanampiyatissa built a pile that says ''a grandson of mine build a stupa in this place''. King Dutugamunu saw this and built a stupa at there. In that place there was a goddess name "Swarnamali". Becuase of that this stupa called Ruwanwalisaya.

Ruwanwalisaya is one of the world's tallest stupa and 300 ft (92 m) height and 950 ft (292 m) circumference. It's also called, "Mahathupa, Swarnamaili Chaitya and Rathnamali Dagabe.