The stupa, shaped like a droplet, was said to have been built by Kind Abhaya for his wife, Queen Somawathie as a place of worship. It is located in the Somawathiya wildlife sanctuary and is said to have enshrined the right tooth relic of Lord Buddha.
It has been renovated over the years, but you will observe a deep cleft left visible in the stupa, displaying the ancient bricks of the original stupa structure.
Interestingly, the altars are within the stupa itself, and devotees are to climb the steps in a single file into the enclosure which accommodates about four people.