A giant thunderhead loomed over the city of Shenzhen during a rainstorm on May 20. The massive dark cloud hovered just above the city's skscrapers in an eerie scene that might call to mind visions of the end of the world. Shenzhen, a coastal city in south China and the country's first special economic zone, is located in southern Guangdong on the eastern bank of the Pearl River. [China.org.cn]