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Four teenagers stumbled upon an incredible collection of prehistoric cave paintings in 1940. While historians, conservationists, and archaeologists discuss the importance of the 17,000-year-old Lascaux caves this week, we felt inspired by the underground complex to explore homes that have been tucked away in caves across the world. Eco-friendly, earth homes have become increasingly popular, so it should come as no surprise that homeowners are writing their own page in a Tolkien tale by setting up camp in these natural shelters. The green benefits are a big draw, but several modern cavepeople are proving that the alternative dwellings don’t have to sacrifice style and comfort. Check out a few amazing cave homes we’d totally live in past the break. Feel free to share your favorites in the comments below.

Real-Life Flinstones Cave Home

This striking stone house is located in Nas montanhas de Fafe in Portugal and looks like a remnant from the fictional town of Bedrock. It’s actually a holiday home set in the countryside. Not much is known about the spherical boulder on a lush hill, but we adore its mini cave construction, because it reminds us of the Flintstones.