Climbing skyscrapers without safety equipment is extremely dangerous, and I do not encourage anyone to try it. But judging from the sharing of known "urban extreme sports" enthusiasts, this experience includes： -Extreme adrenaline rush and fear -High focus on each grip point and foothold -Strong wind influence and temperature changes -The dual test of physical fatigue and psychological stress -Unique urban landscape from a high-altitude perspective This kind of behavior is illegal in most parts of the world, and people die every year as a result. If you are interested in high-altitude experience, there are many legal and safe options, such as indoor rock climbing, safe and secure high-altitude projects, etc.