Ayutthaya Ayutthaya was the capital of Thailand for 417 years from 1350 to 1767, and in total there were 33 kings from different dynasties. The Ayutthaya glory that can be seen in every aspect of the ancient ruins remains memorable. For this reason, the historical city of Ayutthaya was announced as a world heritage site by UNESCO on 13 December 1991, and since then a seven day celebration has been annually held. Bang Pa-In Originally by King Prasart Thong during the Auttaya period almost four centuries ago, the palace was restoredby King Rama IV and King Rama V who would use the palace as a summer retreat. and also to welcome state visitors and hold receptions on various occasions. Bang Sai Royal Arts and Crafts Center Visitors can enjoys shopping, and see local products being create, originating from all districts in Ayutthaya Province. .