The Ancient City of Ayutthaya, or Phra Nakhon Si Ayutthaya, The Thai capital for 417 years, is one of Thailand's major tourist attractions. Many ancient ruins and art works can be seen in a city that was founded in 1350 by King U-Thong when the Thais were forced southwards by northern neighbours. During the period of Ayutthaya being the Thai capital, 33 Kings of different dynasties ruled the kingdom until it was sacked by the Burmese in 1767.