Jethawanaramaya

The Jetavanarama stupa or Jetavanaramaya is a stupa, or Buddhist reliquary monument, located in the ruins of Jetavana monastery . At 122 metres (400 ft), it was the world’s tallest stupa,[3] and the third tallest structure in the world when it was built by King Mahasena of Anuradhapura (273–301).

With the destruction and abandonment of Anuradhapura kingdom in the 11th century, the stupa with others was covered by jungle. King Parakramabahu in 12th century tried to renovate this stupa and it was rebuilt to the current height, a reduction from the original height. Today it stands at 71 metres (233 ft).

The structure is no longer the tallest, but it is still the largest, with a base-area of 233,000 m2 (2,508,000 sq ft).Approximately 93.3 million baked bricks were used in its construction; the engineering ingenuity behind the construction of the structure is a significant development in the history of the island.