Workers prepare for the coming 2013 World Landscape Art Exposition at the Dalian exhibition park in Jinzhou City, northeast China's Liaoning Province, April 18, 2013. The expo, which will kick off on May 10, 2013, is the result of the first coorperation by the Interntaional Association of Horticultural Producers and the International Federation of Landscape Architects. It is also the first world horticultural exposition to be held in the salt marshes after reconstruction and redevelopment. [Xinhua/Li Gang]