Tim Gunn would be proud of such an elegant workaround.
Okay so you don't live in a castle. You can at least build a little part of a castle inside for role playing purposes.
When your guests arrive, what would you like them to see on their approach?
If you can find the place. It's easier in the winter.
Does Elton John sing every time you open the garage door?
Being able to see out your windows isn't nearly as important as restocking the beer fridge in case we get dumped on again.
Imagine the temperature-regulating efficiency of the boulders! I'd definitely sacrifice any space at all for a comfortable air temperature.