The chedi of Wat Yai Chai Mongkhon is one of the landmarks of Ayutthaya, standing high, and visible to all, who approach the city from the east, at par with Chedi Phukhao Thong. The bell-shaped principal chedi stands on an elevated square base with smaller chedis at the corners. There is a second octagonal pedestal above the base to accommodate the bell-shaped body. Stairs lead up on the east side towards the first terrace, and continue inwards the dome. Inside the dome we can see the chamber where The relics were contained. Two mondops stand in the front, with their pyramidal upper structures collapsed, exposing the Buddha statues inside. A rectangular gallery encircles the principal chedi. The gallery is enclosed by an outer Wall, which along with the pillars inside, supported before the roof. Presently only the Foundations of the pillars can be seen. The floor of the terrace is as usual one step higher Than the court. Along the inner wall of the gallery are rows of (newly sculpted) Buddha Images on decorated bases.