Have you heard of the town Cooper Pedy in South Australia? A standard three-bedroom cave home with lounge, kitchen, and bathroom can be excavated out of the ro

Have you heard of the town Cooper Pedy in South Australia? A standard three-bedroom cave home with lounge, kitchen, and bathroom can be excavated out of the rock in the hillside for a similar price to building a house on the surface. However, dugouts remain at a constant temperature, while surface buildings need air conditioning, especially during the summer months, when temperatures often exceed 40 °C (104 °F). There are several motels offering underground accommodation, ranging from a few rooms to the entire motel being a dug-out. https://en.wikipedia.org/wiki/Coober_Pedy https://en.wikipedia.org/wiki/Coober_Pedy