25. "Hobbit" home
You can live in a Hobbit home on a hill under the ground with a recessed pool pavilion built back into a slope or hill. These pavilions use fresh soil to keep your pavilion cooler. Besides, if you've got a hill on your property, this could be genuinely whimsical, enchanting for your landscape.
For decor, nothing is really off-limits because any style is suitable for the recessed pavilion. You can get away with slightly denser, warmer materials in your furnishings because of the additional cooling factor from the surrounding earth.