Phra Nakhon Si Ayutthaya, or more often just Ayutthaya, is one major province located at the central Thailand, approximately 76km from Bangkok. The province is built upon the plain across which the Chao Phraya River runs, occupying an area more than 2,500km2 (617,763 acre) and accommodating a population of about 790,000. 

Ayutthaya is rather famed for the lengthy history entailed behind, as it was once the capital of Thailand for over four decades, since King U-Thong relocated the capital here around 1347 AD following the collapse of the Sukhothai Kingdom. During the Ayutthaya era, this place has witnessed the rise and fall of 33 kings over five dynasties, before it was conquered by the Burmese around the year of 1767. After Thailand fought back and got back on its feet, the capital was moved to Thon Buri, now known as Bangkok, the royal structures and other remainders were left behind and have been transformed into a park nowadays, which has been inscribed as an UNESCO World Heritage Site in December 1991. 

The core area of the ancient royal residence is called the “Grand Palace” today. During the imperial ages, kings were prone to erected new palaces for themselves after assuming the throne instead of taking the old residence from the predecessor, in which case the old palaces were usually dedicated to be used as Buddhist temples. Therefore, originally there were flocks of palaces and religious related structures on this ground, but due to weathering and ruthless looting and vandalizing during the wartimes, only couple of them remained standing among the ruins at present, among which the most renowned one is evidently the Wat Phra Si Sanphet. 

Bang Pa-In Royal Palace is the former summer palace for various Thai Kings and royal families in the past, situated at the Bang Pa-In District of Ayutthaya. The Palace Was built in the mid 17th century and received massive reconstructions in the 19th century. Bangba Yin famous summer palace has a large Chinese-style palace. Thanks to Rama IV and V’s commitment to national reforms following the western style, coupled with the overwhelming cultural influence from the west upon the Southeast Asia, the structures within the palace is of a blend of Thai and Victorian and Gothic architectural style, with a brush of Chinese elements, forming a seamless integration of multiple cultures, making Bang Pa-In Royal Palace the most magnificent, noteworthy among Thailand's five summer palaces. The most exquisite and characteristic piece inside the palace is surely the floating pavilion in the middle of the lake, featuring the classic pointy pinnacle, bold and clashing colors and absolute symmetry. Visitors to Bang Pa-In Royal Palace would be demanded to conform to the strict dress code out of respect. No sleeveless or revealing top or shorts would be allowed.