People visit the Three Natural Bridges, a series of natural limestone bridges located in Wulong County, the world natural heritage, southwest China's Chongqing Municipality, Oct. 16, 2011. Photo: Xinhua
People visit the Three Natural Bridges, a series of natural limestone bridges located in Wulong County, the world natural heritage, southwest China's Chongqing Municipality, Oct. 16, 2011. Photo: Xinhua
People visit the Fairy Mountain Grassland in Wulong County, the world natural heritage, southwest China's Chongqing Municipality, Oct. 16, 2011. Photo: Xinhua
People visit the Three Natural Bridges, a series of natural limestone bridges located in Wulong County, the world natural heritage, southwest China's Chongqing Municipality, Oct. 16, 2011. Photo: Xinhua
