Ocean Spiral: The Underwater City

As the name says, Ocean Spiral, the structure of this underwater city will be spiral and it will have 3 major sections. The central part is 15km long

Can Humans Live Underwater? – Deepblu ApS

Japan Wants to Build an Underwater City - IGN News - IGN

Future Underwater and Ocean Sci-Fi Projects

Japón ya diseña una ciudad submarina

Japan's Underwater City, 'Ocean Spiral,' Is Straight Out Of A

OCEAN SPIRAL, Deep Sea Future City Concept, Topics

Building An Underwater City: The Future of Humanity

Anote's Ark: Floating Cities

ocean spiral envisioned as the world's first underwater city