Wat Mahathat is located in front of the Grand Palace to the east, next to Pa Than Bridge. The temple is believed to be one of Ayutthaya’s oldest temples, possibly built by King Boromaraja I (1370-88). Its central prang, of which only the base remains, once rose to a height of 165 feet. Traces of the original stucco decorations can still be seen on some of the surrounding chedis.
Admission is 50 baht. A package ticket vilid for 30 days is also available at 220 baht each, covering admission to Wat phra Si Sanphet and the Ancient Palace Complex, Wat Phra Ram, Wat Chai Watthanaram and Wat Maheyong.