We've seen many earth-sheltered homes before. But when we were browsing Flickr, we found this photo from user Matito, of Icelandic turf houses -- aka the most interesting dwellings ever-- in Glaumbær.
At first, we didn't know much about these structures, other than that the landscape was used to construct the residences to keep them dry and warm. But after doing a little research we found out that this style of houses was popular until the 1900s, which means that Icelanders were way ahead of the eco-friendly game.
Here's a home that's been built into a hill!
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