© Suresh Krishna
Jethawana Stupa, Anuradhapura, Sri Lanka
The Jethawana Stupa , the central monument of the monastery by the same name had a diameter of 370 ft. It was established in the 3rd century AD. by King Mahasena (276-303 AD). When it was built its height was a little over 460 ft. (140 meters). The apex of the structure has, however, collapsed due to ravage of time. It is the tallest brick structure in the world. It is a World Heritage Monument.