This monastery constructed in the reign of King U-Thong is located outside the city to the southeast in the same direction as the railway station ; one can see its large pagoda from far away. King Naresuan the Great commanded that the pagoda be built to celebrate the victory of his single-handed combat on the elephant back. He also intended a huge construction to match the large pagoda of Wat Phukhao Thong, and named it “Phra Chedi Chaiyamongkhon”. It is open everyday from 8.00 a.m.-6.00 p.m.