Coober Pedy is a small Australian town,  famous for being the opal capital of the world because of the large quantity of opal stones that are mined here. What people don’t know about this place is that the locals mostly like to live underground. A tradition that goes back to the early 1900, when the first miners arrived in the area, cave-boring in the hillsides is still popular. The temperatures here during the Summer are unbearable for some, so they opt for underground living quarters, at approximately the same price as a surface-built house. The first one keeps a constant, cool temperature during the Summer while the second needs air-conditioning. It can get quite cold during the winter, though.

One of the most popular attractions in Coober Pedy are the underground churches.