Climbing a skyscraper without safety equipment is extremely dangerous and completely undesirable, and will bring a series of extremely terrifying and life-threatening experiences: First, there is the strong dizziness and extreme fear brought by the height. Every step up is like standing on the edge of life and death. The body will tremble uncontrollably and the mind will be under great pressure. Secondly, without safety protection, any small mistake may cause a fall from a high altitude in an instant, and the strong premonition of loss of control and death will be everywhere. Moreover, the surface of a skyscraper is often not suitable for freehand climbing. There may be smooth glass, narrow edges, etc., and it is easy to slip. In short, this behavior is not safe at all, and it will put the climber into extreme fear, tension, and the desperate situation where he may lose his life at any time. It is a crazy act that should never be attempted. Life is precious, so do not engage in such dangerous behavior.