People visit a scenic resort in the Zhoucun District of Zibo City in east China's Shandong Province, April 30, 2013. Tourism boosted in Zhoucun during the three-day public holiday celebrating the upcoming international workers' day on May 1. The scenic resort in Zhoucun opened to the public free of charge since March 2011. (Xinhua/Dong Naide)

A visitor walks past posters promoting sesame cakes in the Zhoucun District of Zibo City in east China's Shandong Province, April 30, 2013. Tourism boosted in Zhoucun during the three-day public holiday celebrating the upcoming international workers' day on May 1. The scenic resort in Zhoucun opened to the public free of charge since March 2011. (Xinhua/Dong Naide)

People visit a scenic resort in the Zhoucun District of Zibo City in east China's Shandong Province, April 30, 2013. Tourism boosted in Zhoucun during the three-day public holiday celebrating the upcoming international workers' day on May 1. The scenic resort in Zhoucun opened to the public free of charge since March 2011. (Xinhua/Dong Naide)

A craftsman engraves patterns onto porcelain pieces in the Zhoucun District of Zibo City in east China's Shandong Province, April 30, 2013. Tourism boosted in Zhoucun during the three-day public holiday celebrating the upcoming international workers' day on May 1. The scenic resort in Zhoucun opened to the public free of charge since March 2011. (Xinhua/Dong Naide)