Aerial photo taken on May 21, 2019 shows technician Gu Heli(R) examineing the cable car ropeway with colleagues at Huangshizhai scenic area in Zhangjiajie, central China's Hunan Province. Zhangjiajie, a picturesque tourist spot in central China, is regarded by many tourists as an elysium on Earth. Its pillar-like mountain formations are prototype for Avatar's fictive diorama of hanging, mist-shrouded peaks. To secure the safety of tourists, many technicians like Gu Heli pay full attention on inspecting and safeguarding the transport infrastructures. (Xinhua/Wu Yongbing)