Introduction to Pineapple Top: The caisson in the main hall is made of more than 1,000 pieces of refined rectangular wood. It is spiral-shaped and is commonly known as the pineapple top. The structure is ingenious and unique, and it can suck the cigarettes in the hall to the top of the hall and discharge them quickly. It will not cause the visitors in the temple to be choked by the smoke. It can be said to be a masterpiece of temple architectural art.