What do you think of this crazy stone house tucked into the Fafe Mountains in Portugal? Constructed between two giant stones and linked with a concrete mix, the house is rumored to be inspired by the popular American Flintstones cartoon. Although quite unusual, the prehistoric-looking residence does feature some traditional components such as windows, a front door, and even a shingled roof. As you might expect, the house’s design attracts thousands of tourists each year.

More images after the break.

Via Gizmodo. Photos from Flickr via user Jsome 1, Feliciano Guimarães.