“Nang Yai” (grand shadow play) is a Thai cultural heritage. Praised as a sophisticated performance, the grand shadow play combines various types of precious arts, notably the design of exquisite Thai decorative patterns and the sculptors' meticulous skills. Once the performance starts, the aesthetics of dramatic arts play a big role as they brining out the right movement following the mood of the story. Combined with the narration, conversation, songs and music, the performance perfectly illustrates the story and convey the proper aesthetic senses to the audience. The grand shadow play is then highly regarded as posing an exceptional aesthetic value and, at the same time, reflecting Thai ancestors' genius creativity.

“Nang Yai Wat Khanon” (grand shadow play at Wat Khanon Temple) was built during the reign of King Chulalongkorn or Rama V., while Prevost Sattha Soonthorn (Luang Pou Klom) initiated the idea of carving the leather for the shadow play. The Prevost came up with the idea of increasing the size of the existing shadow play and thus he invited Master Ang, Craftsman - Jad, Ja and Puang to join his project. The first set of the creation was “Hanuman Tawai Waen” and later 9 more were created, with the current number of 313 leather pieces. The carved leather for the grand shadow play is the temple's long-preserved treasure. This place meanwhile is the only temple with its own play along with the performance and complete performing group under the temple patronage.

The temple converted its old prayer hall, which was built in the style of Thai traditional house, into the museum. Located next to Maeklong River, the museum is around 10 kilometer-away from Photharam District. Assistant Professor Somjai Nimlek was in charge of the museum's design while Associate Professor Pongsak Arayangkul was responsible for the museum's interior design. The museum features the exhibition on the grand shadow play which is more than 100 years old and still in perfect condition. Most of the characters in the grand shadow play are from the story of Ramayana. The exhibition also presents the background and origin of the grand shadow play along with the carving process of the play's leather pieces.