Underground city to protect 10,000 people from Siberian winter

The project Eco-city 2020 foresees the construction of an artificial underground city inside the Mir diamond mine, the second largest excavated hole on the planet. The mine is about 1200 meter wide at the top and over 520 meter deep. Open mining of diamonds in this quarry is not more profitable, and will be continued by the undeground method, while a huge open pit will be left empty. If the project gets going, the mine would be completely covered with a glass dome, designed to protect the city from the Siberian weather.

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