The capital of the Sukhothai Kingdom. The Kingdom existed from 1238 until 1438. The old capital, now 12 km outside of New Sukhothai in Tambon Mueang Kao, is in ruins and has been designated as a UNESCO World Heritage historical park. The temple surrounded by a moat and brick walls contains a great number of monuments including the main lotus bud chedi, numerous more chedis in several styles, viharns, an ubosot and three mondops enshrining large images of the Buddha. Because structures were added over the course of several centuries, the temple grounds contains structures of several architectural styles including Lanna, Singhalese, Sukhothai and Mon Haripunchai.