The South Australian town of Coober Pedy is the opal capital of the world, but in summer the temperature can reach 104°.
So the residents moved underground. A three-bedroom cave costs about the same as a house, and you don’t need air conditioning.
The South Australian town of Coober Pedy is the opal capital of the world, but in summer the temperature can reach 104°.
So the residents moved underground. A three-bedroom cave costs about the same as a house, and you don’t need air conditioning.