It was once a top-secret subterraneous base. Now China’s 816 Nuclear Plant in Chongqing has reopened as a traveller captivate after a year of renovations.
Twenty kilometres of roads and tunnels couple 18 synthetic caves, with one – 79.6 metres high – a world’s largest.
Up to 60,000 group worked on a construction of a plant, that began in 1966 when Sino-Soviet family declined.
Work continued until 1984 when a plan was cancelled.
The site was initial non-stop to tours in 2010.
Foreign tourists are also now authorised to revisit a site, that was built to furnish plutonium-239 though never contained any chief material.