China sees 230 mln domestic tourist trips during May Day holidayMeihuashan scenic area in Nanjing, JiangsuRainbow seen at Hukou Waterfall scenic spot in China's ShaanxiMalaysian plover seen in SingaporeSpring scenery in Sichuan Fine Arts Institute in China's ChongqingGLOBALinkCat cafe in Bydgoszcz, PolandChina sees 230 mln domestic tourist trips during May Day holidayScience Museum in London to reopen on Aug. 19Peach flowers in full blossom at Mutianyu Great Wall