This $26 Billion Underwater City Could Be Ready in 15 Years Humanity could soon live under the sea. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts The Most Astounding Fact (Neil DeGrasse Tyson) Teenager wins $400,000 for video explaining Relativity Nikola Tesla Harnessed the Power of Niagara Falls Is There A Bermuda Triangle In Space? What if You Were Born in Space? The American Kilogram — Veritasium