Looking to go off the grid? This 2-bedroom, 2-bathroom home in Tres Piedras, New Mexico — on the market for $475,000 — is built for that. Architect Mike Reynolds and his team followed Earthship “biotecture” standards to create this property out of natural and recycled materials. The solar-powered home features a sophisticated aqua-botanical system for growing fresh fruit and veggies. A fishpond runs throughout the home, feeding into the lush interior greenhouse garden.