Declared a UNESCO World Heritage Site, this park has a deep history attached to it. The second capital of the country for close to 500 years, Ayutthaya bore the brunt of an attack by the Burmese who tore much of the city down. Most of the remaining structures were hidden underground for centuries. In the more recent years, these ruins have been excavated and the area has been turned into an archaeological park. One can simply stroll amongst the ruins and explore the striking structures from the years long gone. The Ayutthaya Historical Park is only an hour's drive from Bangkok which makes it excellent for a one day trip away from the city.