35-year-old Li Manman is a mother of three and also a female crane operator on a construction site. In 15 years, she has participated in the construction of eight projects, climbing up to the crane operator's cab at a height of 101 meters and staying up there for a whole day. From a girl who was once afraid of heights, she has transformed into a "sister in the clouds" today. She says that only the blue sky is above her head. (video from Xinhua)