Tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province, April 18, 2019. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)

　　In this aerial photo taken on April 18, 2019, tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)

　　In this aerial photo taken on April 18, 2019, tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)

　　In this aerial photo taken on April 18, 2019, tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)

　　In this aerial photo taken on April 18, 2019, tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)

　　In this aerial photo taken on April 18, 2019, tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)

　　In this aerial photo taken on April 18, 2019, tourists visit the Qiaojie street in Liping County of Qiandongnan Miao and Dong Autonomous Prefecture, southwest China's Guizhou Province. The Qiaojie street, elevated at both ends but lying lower in the middle due to its geographical location between two mountain slopes, is now a tourist attraction. (Xinhua/Ou Dongqu)