1. Domus Civita, Italy
2. Cave pool, Santorini, Greece
3. Caves in Nottingham, England
4. Hillside Home, Vals, Switzerland
5. Cave homes, Cappadocia, Turkey
6. Rock houses, Iceland
7. A hogan in Arizona
8. Matmata village, Tunisia
9. Bad Blumau, Austria
10. Dune House, Atlantic Beach
11. Beckham Creek Cave Lodge, Parthenon, Arkansas
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12. Aloni house, Antiparos Island, Greece
