(CNN)-- A floating city off the coast of San Francisco may sound like science fiction, but it could be reality in the not-too-distant future. The Seasteading Institute already has drawn up plans ...

Right now, HAVOC is just an idea, but if fully implemented, it would lead to floating cities on Venus that look like this: Venus' cloudy skies are relatively pleasant - especially when compared to ...

Think of aircraft carriers. The floating city in development off Busan is coming together through the collaborative efforts of the United Nations Human Settlements Program, known as UN-Habitat ...