Aptly named, this unique-looking property is called Casa do Penedo, which translates to House of Stone. This incredible building is located in Guimarães, Fafe Mountains, Portugal, and still makes use of the four original boulders used to build its structure. While you would be forgiven for thinking that this property was built centuries ago, this extraordinary home was actually built as late as 1974. And despite its apparent proximity to windmills, the Casa Do Penedo isn't powered by electricity.
Today, this place serves as a holiday retreat. Could you imagine stumbling across this extraordinary place on Airbnb? It's breathtaking enough to warrant a double-take!