Introduction to Tianyi Alley Scenic Area: Tianyi Alley, formerly known as Niubi Village, is named after the many pairs of stone holes that resemble ox noses on the east side. There are nine "one-line sky" in the scenic area. Among them, the representative Tianyi Lane is known as "the best in Langshan", with a total length of 238.8 meters. The stone walls on both sides are more than 80-120 meters high. The widest point is 0.8 meters and the narrowest point is 0.33 meters. It is a rare wonder in the world. . In addition, Yuxian Lane, Horse Ti Lane, Yuxian Bridge, Xianren Bridge, Baizhang Cliff, Moonlight Rock, etc. are also worth seeing in the scenic area.