Enter the town's old town and feel the tranquility and sense of the times. The houses in the old town have almost 400 years of history. Walking in the old city, you really have a feeling of walking into historical fairy tales. There is a world-famous old house in Hinterdorf, a unique World Heritage Site in Switzerland. These old wooden houses were built between the 17th and 18th centuries. They are very special. The most characteristic is that there is a disc separating the cabin. He has a very cute name called a mushroom house because his shape is like a mushroom. In fact, he is useful. For example, when they store food, there may be mice who want to steal their food, so they want to use a large slate to block him, and the mouse goes up the wood. When you climb to the slate, you can't go up. It is also the wisdom of the ancestors, so that such a slate can achieve the function of preventing rats. The old house of Hinterdorf is the largest and oldest mushroom house in the country. This mushroom house is the most standard building in their old town. They have always preserved its appearance, just like the original. This is a three-story building. The first floor is for animals, so this door is very small, because some animals live in the winter. Then the second floor is the kitchen. The last three layers are people living.