Introduction to Hedetang: Hedetang is located on Yaolin Street. It is one of the early scholarly families in Lukang. It is a Minnan-style brick building. There is a reading building with a unique layout on the roof. The small attic is about four square feet in size. What is special is that there are no stairs in the attic, but bamboo ladders are used to go up and down. It is hoped that children can read in the attic without distractions and wait until they finish reading. Stairs downstairs.