One of the most important temples in Ayutthaya, Wat Yai Chai Mongkhon has a long and illustrious history. And unlike many of the other ancient sites in Ayutthaya, this is still an active temple where monks reside. Thai people visit Wat Yai Chai Mongkhon to not only pay respects to Buddha, but also to pay homage to one of the most respected kings in Thai history, King Naresuan the Great.