Have you ever stayed in a cave hotel? You can find this unique form of accommodation in Goreme, Turkey or, closer to home in Coober Pedy.
This amazing dugout house is a great introduction to underground living, Coober Pedy style. See it on your own or join a tour.
Where else can you find interesting artefacts and quality Aboriginal art combined with cute little marsupials? Nowhere!
This is an award-winning tourist attraction for good reason. It gives great insight into the harsh world of underground opal miners.
Whether you’re religious or not, you’ll find the Serbian Orthodox Church, the Catacomb Church and the Catholic Church all well worth a look. It’s not every town that can boast of several underground churches, but these are all quite attractive – in a slightly claustrophobic sort of way.