I have a few old hex or octo card tables like that too ..... thanks, I like that idea.
A tall rectangle box with portions cut away for a square SPIRAL frame? (there's the word I needed).. with landings between flights, etc.
The box idea could be enclosed with just doors/signs for stairs and elevator.
A plexi/lexan box for an elevator shaft? (static, but visual treat). Pinstripe for the framework, etc.. could be a display case bashed if you wanted. A solid wall or 2-3?. Stairs in one would be more work than an elevator cab, but doable too.
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