ocean spiral envisioned as the world's first underwater city — designboom.com

ocean spiral envisioned as the world’s first underwater city all images courtesy of shimizu corporation japanese construction company shimizu corporation has unveiled plans for an underwater city, capable of housing 5,000 permanents residents. named the ‘ocean spiral’, the design is comprised of a floating 500 meter wide sphere that is connected to a resource center on the ocean floor via a 15 kilometer helix-shaped path.

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