Wat Phu Khao Thong is in the village of Phu Khao Thomg ( Phu Khao means mountain and Thong means goal), is around 2 kilometers at the northwest direction of the royal palace.In A.D. 1569 ( B.E.2112 ), King Bhuleng Noung of Hongsawadee ( Burmese city) issued an order to build pagoda in Mon style , with the height of 50 meters and stand in rice field, Burmese army used as the observation tower ,the real purpose of construction was to commemorate his victory over Ayutthaya, over 2 centuries later this Chedi fell into despair.In A.D 1387 ( B.E. 1930) King Ramesuan found the adjacent temple ( also named “Wat Phu Khao Thong”). In A.D.1584 ( B.E.2127) , Somdej Phra Naresuan Maharat declared Ayutthaya as independent city and ordered to build a Thai style pagoda to superimpose on the large Mon style base at Thung Makam yong and monks were allowed to reside at this temple again in A.D. 1957. This Chedi was last long 200 years, finally it collapsed due to lack of maintenance.During A.D. 1733-1758, under the reign of King Boromakot, he ordered to put pagoda in Thai style( the squared -based and indented corner ) on the Burmese based, this Chedis can be climbed up halfway.