Jetavanaramaya

The Jetavanarama stupa or Jetavanaramaya is a stupa, or Buddhist reliquary monument, located in the ruins of Jetavana monastery in the UNESCO world heritage city of Anuradhapura, Sri Lanka. At 122 metres, it was the world's tallest stupa, and the third tallest structure in the world when it was built by King Mahasena of Anuradhapura. He initiated the construction of the stupa: 49  following the destruction of the Mahaviharaya of Anuradhapura. His son Kithsirimevan completed the construction of the stupa, and it was renovated by Parakramabahu I of Polonnaruwa. A part of a belt tied by the Buddha is believed to be the relic that is enshrined here.

The structure is significant in the island's history as it represents the tensions within the Theravada and Mahayana sects of Buddhism; it is also significant in recorded history as one of the tallest structures in the ancient world; and the tallest non-pyramidal building; the height of the stupa was 122 metres, making it the tallest stupa in…

Source: Wikipedia