In the scorching sun, three workers hang in the air to clean the outside windows of a skyscraper in Taiyuan city, North China's Shanxi province, August 3, 2011. The three workers are part of a 'spiderman' group whose job it is to clean the outer walls of skyscrapers while hanging by a single rope. They have to work outdoors for hours despite the hot weather.[Photo/Xinhua]