Hidden way
A lever is used to move two pistons, one on top and one on the bottom, to push the stones away. It is disguised as an oven.
House garden
Not sure what else you can fill space with in your home? Then simply turn the space into a garden!
Log stacks
A nice detail that looks good next to houses, barns, etc.. Optionally, ladders can be used on the lowest trunks, or detector rails, which are then to simulate tension belts.