The constructions of the cities represent an area or even a country’s prosperity. In the non-stop competition, the buildings were built higher and higher. To satisfy the constructing requirements day by day, the factories were built... higher buildings can never exceed the smog made by humans. “Gloomy Smog” means “Chaotic Era” in Chinese. The workpiece is shot with Tilt-shift Lens skill by shifting the axis upward while shooting, which shows the scene of constructing procedure deep into the smog.