Wat Lokaya Sutha is a massive temple ruin. It is aligned toward an east/west axis. The monastery has been heavily restored, including floor tiles and brick floors throughout. Most of the temple exists only at the basic foundation level. This includes some stubs of pillars and basic walls. At the eastern entrance are the remnants of three vihans. Behind these sermon halls is a large 30 meters high, Late Ayutthaya period, Khmer-style prang. This prang-tower has a hollow entrance on its eastern side. The remains of an ubsot can be seen behind the prang. Only the basic foundation layer has survived, but there are many sema stones and the detritus of Buddha images. A large bell tower stands on the southwestern corner of this ubosot. The highlight of this temple is its enormous reclining Buddha image (37 meters long and 8 meter high), which is located behind the ubosot.

Wat Phra Si Sanphet (Thai: วัดพระศรีสรรเพชญ์; "Temple of the Holy, Splendid Omniscient") was the holiest temple on the site of the old Royal Palace in Thailand's ancient capital of Ayutthaya until the city was completely destroyed by the Burmese in 1767. It was the grandest and most beautiful temple in the capital and it served as a model for Wat Phra Kaew in Bangkok.

Wat Mahathat, “the temple of the Great Relic” was one of the most important temples in the Ayutthaya Kingdom. Located on the historical island the large monastery features a huge central prang, a very large principal viharn and ubosot and a great number of subsidiary chedis and viharns. The upper part of its once massive central prang has collapsed. Today only the base remains. One of the temple’s most photographed objects is the head of a stone Buddha image entwined in the roots of a tree.

Wat Chaiwattanaram rests on the bank of the Chao Phraya river, to the west of the city island. The temple was ordered to built in 1630 by King Prasat Thong to honor his mother, featuring the architectural style influenced by Angkor temple in Cambodia—its unique feature is a large, central prang (Khmer-style pagoda) surrounded by smaller prangs, symbolizing Mount Sumeru, the gods' mountain according to Hindu belief.

The Ayutthaya Historical Park comprises of the ruins of temples and palaces of the capital of the ancient Ayutthaya Kingdom. The park is located on an island surrounded by three rivers where the old capital used to be. The Ayutthaya Kingdom, which existed from 1351 until 1767 was one of the largest and most prosperous empires of its time. The ruins of many impressive temples and palaces give an impression of the wealth of the ancient Kingdom.

Phra Mongkhon Bophit or the Buddha of the Holy and Supremely Auspicious Reverence was sculpted in 1538 in the reign of King Chairacha (r. 1534-1547) at Wat Chi Chiang Sai. 1538 is generally accepted as the year that the image was built, based on the Luang Prasoet version of the Royal Chronicles of Ayutthaya (Most of the other versions put its construction at 880 of the Chulasakkarat era or somehow 20 years earlier).