Tanya heads to the Orange County enclave of Newport Coast to tour a mansion that's on the market for a whopping $48 million. Surprisingly, this massive home is self-sustaining, with state-of-the-art rooftop panels, backup generators and natural gas that allow for an off-grid existence. Next, it's minimalist to the maximum with a home that has no design distractions and uses smart tech to hide every cable behind a literal motherboard of walls. Tanya's mind is blown as she tries to imagine living in a world without décor.