Introduction to Nainai Cypress: Nainai Cypress is the oldest cypress tree in the Han Tomb. The tree has an empty heart, wrinkled skin, fallen branches, and many scars. From a distance, it looks like a kind old grandmother, so it is also called "Grandma Cypress". The locals It is regarded as a sacred tree. Many people burn incense and make wishes, and red ropes are tied all over the tree.