The UNESCO-listed historical park is the main reason to come to Ayutthaya and the best first stop for understanding how the old capital was laid out across the island.
This is not one single gate-and-exit attraction. Think of it as the framework that holds Ayutthaya together, with the major temples, palace remains, and supporting streets all fitting into one broader heritage landscape.
Current Info: Major paid ruins are typically ticketed individually, and a combined pass is often the best value if you are visiting several of the main sites.