The Ruwanwelisaya is a stupa, a hemispherical structure considered sacred to many Buddhists all over the world. This was built by King Dutugemunu during 140 B.C. He was famous for uniting Sri Lanka by defeating the Chola King Elara,
This is one of the the 8 places of veneration in the ancient sacred city of Anuradhapura. The stupa is one of the world’s tallest ancient monuments, standing at 103 m (338 ft) . It’s circumference is 290 m in length.