This story appears in the June 2019 issue of National Geographic magazine. Italian physicist and photographer Alessandro Cerè took a break from work at the Centre for Quantum Technologies in ...
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Son Doong listed among world's best cavesSon Doong Cave in the central province of Quang Binh is ranked sixth out of the best 10 caves in the world, according to the British travel magazine Time Out. Sinkhole Camp 1, situated within Son ...
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