Talk about low-impact living; this 4-bed, 4-bath midcentury home was specifically designed around its rocky lot in Mountain Center, California, and is now on the market for $799,000. A write-up in the Los Angeles Times Home magazine in 1962 claims “no earth was moved nor trees felled” to create this A-frame mountain retreat. Even the lagoon pool was thoughtfully nestled into a natural gully so as not to disturb its surroundings.