What looks like left-over boulders from the Stone Age is actually a house. Casa do Penedo or the 'House of Stone', was built until 1974 with four different boulders. The Portuguese getaway has no electricity so the homeowners use candlelight to see when indoors. That said, the house the boasts a cozy fireplace, a swimming pool carved into stone and logs for stairs.
(Courtesy of Feliciano Guimarães) More From Forbes
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