A couple looks to build an eco-friendly, off-the-grid geodesic dome, cooled using geothermal caves, with a view of Tennessee's South Cumberland Mountain Range. But they're up against uncertain weather, an intricate design and treacherous mountain paths.
By entering your email address, you agree to our Terms of Use and acknowledge the Privacy Policy. discovery and its affiliates may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the Privacy Policy.