One of the iconic images of Ayutthaya are the three main chedis at Wat Phra Si Sanphet. This used to be in the compound of the Grand Palace before it was burned to the ground by the Burmese in 1767. The three chedis were later rebuilt. The old temples around Ayutthaya are normally only open to the public during the day. However, if you are lucky you may be able to go into the grounds of one at sunset to take pictures during the twilight hours. Five of the temples are lit up at night for a few hours.