From the most populated city in the 1700 to the home of most diverse people in 1800, this city has come a long way to what it is now. Although all that remains today are only but a glimpse of the once magnificent city that it once was. It is the cultural hub of the country and contains remains of temples and palaces built most beautifully.
Most temple ruins can be found at the northwest of this island. Navigating your way around the island is not particularly difficult and should be easy. The accommodations and night life can be found at the north east of the island. You can reach this cultural haven through bus, through minivan, through train, through private car or through boat. Chose it according to your comfort.
Getting around in the city is through Cycle which will cost you around 40 baht per day.The archeological park is easy to go to and going there is manageable via cycle. The map of the place is availabla at all hotels for free. Your mode of transport can also be tuk-tuk. 200 baht per hour is the standard rate for tuk tuk which picks up backpackers from place to place. Chose tram, Sang thaew, cyclo, motorbike or a boat. The choice are many.
The destinations to visit are plenty. Wat Phra Si Sanphet: It is the largest temple in Ayutthaya, known for its distinctive row of restored chedis. The royal enterance is also near the Wat Phra Si Sanphet but it is said to bedestroyed ny the burmeses.
Viharn Phra Mongkol Bopit: It house an amazingly cast Buddha image which was originally enshrined outside the grand palace to the east. The open area east of the sanctuary (wihan) was formerly Sanam Luang, where the royal cremation ceremony took place.
WAt Phra Mahathat: It ia large which was quite extensivel ransacked by the Burmese several times. This is also the home to the famous tree that has grown around a Buddha head. You can take pic. Make sure you kneel to show respect while taking pictures. Being in a foreign land you should follow some customs as considered holy by Thais. This is one of those.
Other places you can go to are: Wat Ratchaburana, Naresuan road, Wat Thammikarat, U-Thong Rd, Wat Suwan Dararam, (southeast island), Phet Fortress, (southeast island), Wat Phra Ram, Sri Sanphet Road, Phra Chedi Suriyothai U-Thong Rd, Wat Borom Phuttharam (inside Rajabhat University).
I hope you have noted all of these down as there are many more. Do google all of these before making your itinerary. The museums are plenty and I leave it to you to search them and see the vastness of cultural experience that this enriching city has to offer.
You can also go off the island and visit Wat Chaiwattahnaram or other wats there. Do vist the local markets like Chao Phrom market or the Elephantstay market. All we can say is splurge, respect, stay safe and get immerse in the authenticity of the city.