This historic Wat is located strategically on the banks of the Noi River in Ban Yai Subdistrict, Phak Hai District, Phra Nakhon Si Ayutthaya Province. Wat Yan Ang Thong (MAHS-THA-AYA-PKH-BAY-S-001) was formerly known as Wat Chulalok, was established in 1824 and constructed during the reign of King Rama III. It received royal title (Wisungkhamsima) in 1827.

The Ubosot is located on the east of the complex and is marked by eight boundary stones (sema). The Vihara is situated at the opposite end of the axis and features a cruciform plan with an ornamented roof consisting of a multi-tiered tower (prang). Symmetrically situated between each wing, there are stupas (chedi).

This Buddhist temple complex is enclosed by walls, within which stand two main buildings: the Ubosot (ordination hall) and the Vihara (Buddha image hall). The Ubosot is situated on the east side of the complex, marked by eight boundary stones. On the opposite end of the axis, the Vihara showcases a cruciform plan with an ornate Prang roof and multi-tiered structures. Stupas (Chedi) are symmetrically positioned between each wing outside of the Vihara.

The southern quarter of the temple is reserved as monk residences. It consists of the Kutis, or the monk's monastery, a sermon hall, and a bell tower. Most of the buildings were constructed in traditional Thai styles.

According to the current management, Kutis have double functions. Kuti Wang Na in the front and Kuti Wang Lang in the back also serve as museums for public display and education. The exhibitions include collections of antiques and art objects.