This $7.9 million Knoxville, Tennessee mansion is the type of place where ceiling murals, Juliet balconies, and more columns than we can count all look perfectly at home. It is also, apparently, the type of place that comes with a cave, which the listing sparingly describes as "Your own personal open cave with electricity." The cave is unfurnished. There are no accompanying suggestions for what to do with it. But it's there, so if you get tired of your five bedrooms, nine bathrooms, and ten acres of land and you want to spend some time in the cave, that's an option.
· 1909 Rudder Ln [Zillow]