Insane Ocean Spiral proposed as giant underwater city
Modern-day Atlantis': Could this huge 'Ocean Spiral' be the underwater city of the future?
Spectacular' and bizarre ocean creatures (like stilt-walking fish) found living near deep-sea volcanoes
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underwater city
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Japanese construction firm says this 'Ocean Spiral' is the underwater city of the future, The Independent
Insane Ocean Spiral proposed as giant underwater city
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