Most people think living underground is for bunkers or poverty. But in Coober Pedy, South Australia, about 60 percent of the population lives underground. Not because they have to, but because it is ...

However, some societies have adapted to living underground, either by choice or out of necessity. These underground communities have thrived in different parts of the world for centuries, with people ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Coober Pedy is one of Australia’s strangest and most famous outback towns, a place where much of daily life happens below the surface because the desert heat above ground can be punishing. Located in ...