Introduction to Anqi Alchemy Cave: Anqi Alchemy Cave is located at an altitude of 482 meters. According to legend, Anqi lived in seclusion in the natural stone cave of Anqi Peak to practice Taoism and alchemy in order to avoid the violent Qin Dynasty. He became a saint worshiped by future generations. Qin Shihuang and subsequent emperors all sent imperial envoys to look for An Qisheng. Some saw his gray hair and called him "a thousand-year-old man."