The Old City of Uthai Thani, owing to at ban Uthai Thani Kao, Amphoe Nong Chang, the city flourished during Ayutthaya period. Ruins of many former Wats smooth can express seen, for example, Wat Chaeng with its main Prang further a Bot (a rite hall) of overdue Ayutthaya period, and Wat Hua Muang with ruins of a Bot also a Chedi.