Era : Polonnaruwa,
Built : King Nissanka Malla,
Rankoth Vehera is structure made entirely of brick, and has a base diameter of 550 feet (170 m) and a height of 108 feet (33 m). However, the original shape of the stupa, particularly its upper portion, has been changed during renovation work carried out by later rulers and it is estimated that the original height of Rankoth Vehera may have been almost 200 feet (61 m). Despite this, it remains the largest stupa in the ancient city of Polonnaruwa, and the fourth largest stupa in the country. The stupa has four large Vahalkadas, a structure used for offering flowers and also to support the weight of a stupa. These are also made of brick. The stupa is located in the center of a large square terrace, which is also surrounded by a brick wall. The terrace has four entrances oriented to the four cardinal points, with sand paths leading to them.[4] A stone inscription near one of the entrances mention that King Nissanka Malla observed and supervised the construction of the stupa from there. It is also mentioned that he worshiped the stupa from a small platform, which is located in a corner of the terrace