Phra That Kong Khao Noi is at Tambon Tat Thong. Take the Yasothon-Udon Thani route for 2 kilometres to get to the site. Built during the 23rd-25th Buddhist century in the late Ayutthaya period, the small, square brick pagoda has a distinctive top. The middle part has designs of doorways on all 4 sides. A brick wall surrounds the pagoda. A sacred Buddha image is behind the pagoda. Legend has it that it was built by a young farmer who was repentant after killing his mother because he was upset with hunger.