Japanese company unveils grand designs for underwater city

Design for the Shimizu Ocean Spiral.

Design for the Shimizu Ocean Spiral. Image by Forgemind ArchiMedia / CC BY 2.0

Shimizu Corporation in Japan has been developing plans to build a large underwater city that would include residences, hotels and businesses. Shimizu, an engineering company, released designs of the complex showing a globe 500m in diameter and a 15km-long spiral structure. The corporation, which is working in conjunction with the Japan Agency for Marine-Earth Science and Technology and Tokyo University, says it would take five years to build the complex at a cost of ¥3 trillion. Read more: telegraph.co.uk

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