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 What Happened Before History? Human Origins How Many Holes Does a Human Have? Did You Know Any Object Can Levitate Magnetically? Why People Keep Seeing Crazy Stuff on Mars Does Thinking Hard Burn More Calories? Recharging without cables: the road ahead for electric cars