Wat Yai Chaimongkon or Wat Chao Phraya Thai

A working monastery south of Ayutthaya. No one knows how old it is, but it existed before Ayutthaya was founded as the capital. It contains a gilded 19 meter high seated Buddha from 1334 CE, called Luang Pho Tho (หลวงพ่อโต) by Thais and Sam Pao Kong (ซำเปากง) by Thai-Chinese, restored several times in history. A small room to the right of the main hall contains a nice collection of Buddha images and the room is painted with many individual unique pictures, in bright colours offset with gold. At the end of the temple, there is a shrine dedicated to Chao Mae Soi Dok Mak (เจ้าหญิงสร้อยดอกหมาก). The temple was visited in 1407 CE by Zheng He.

This modern wat with no ruins can be accessed by side streets off U-Thong Rd. The wat contains a few small spires, and some nicely decorated modern buildings.

A tourist attraction that preserves the tradition of Thailand. It recreates the art and culture of the Ayutthaya period (1351 to 1767) that includes historical clothing, Thai architecture styles, amusements, Thai foods, and the lifestyle of Thai people in the past. The Floating Market has a pond at the center, and is divided area into 16 zones mirroring the districts (amphoe) of Ayutthaya. There is also theatre: three shows Monday - Friday and four shows on Saturday - Sunday. As of 2024, tourists need to pay 200 baht/person to enter the market. The fee covers an optional ride around the market in a motorboat.

The Dutch East India Company (VOC) founded in 1602 was the largest and most impressive of the early modern trading companies operating in Asia. The Dutch established their first trading post in Ayutthaya in 1608. By the 1630s the Dutch received land and permission to build a lodge on the east bank of the Chao Phraya River. The two-storey brick building was known to the Dutch as de logie and the settlement developed into a separate village. This building was destroyed by the invading Burmese armies in 1767. After being archaeologically excavated, the brick foundation of the building was found and during the celebrations of 400 years of Thai-Dutch relations, Queen Beatrix donated a royal gift to establish an information centre near the site of the Dutch lodge. The Thai Fine Arts Department excavated the site and found many artifacts, such as Chinese porcelain, Dutch pipes, and a coin.

This fortress was the city's most important defensive structure in the 15th century. It was built of wood in 1350 CE by King Mahachakraphat, and later rebuilt with bricks. A few walls still remain and the grounds have a nice view of the river. The fortress is close to Wat Suwan Dararam, and is right beside a ferry that can take you to Wat Phanan Choeng.