Curve introduction: "Curve 72" is just the name local people call this section of road. There are actually far more than 72 sharp curves. It is said that there may be more than 72 180-degree turns on this stretch of road alone, and countless 90-degree turns. The climate at the north and south ends of this section of road can be described as distinct most of the time - when in winter there is white snow on the top of the mountain from the direction of Zunyi, and after the car passes through the 72 bends and goes to the bottom of the valley, there seems to be a warm wind blowing against the face outside the window. The temperature is 5-8 degrees Celsius higher than Zunyi on average.