Built in 1846 during the reign of Rama III, Rama III built and personally designed the whole building for his favorite granddaughter, so it is also the Wang Sun Temple. This kind of temple building is the only one in the world at present. This is a beautiful four-storey pagoda temple, 36 meters high, with 37 spires, the overall pyramid-shaped, Sri Lankan architectural style. Here is a free visit. There are spiral staircases to climb the top of the building. Upon ascending the top floor, you can look around 360 degrees.