Ayutthaya Historical Park
The Ayutthaya Kingdom, which existed from 1351 until 1767 was one of the largest and most prosperous empires of its time. The ruins of many impressive temples and palaces give an impression of the wealth of the ancient Kingdom. In 1991, part of Ayutthaya Historical Park was declared a UNESCO World Heritage Site under criteria III as an excellent witness to the period of development of a true national Thai art.