https://gizmodo.com/every-coffee-table-should-have-a-secret-pop-up-miniatur-1846683313/amp
That's cool!
Yeah, that is pretty impressive - particularly the bit where the train runs off into a siding so the thing can be turned over.
I think it would be easier just to take them off, though.... and what happens if the table gets bumped? The train in the siding will probably be derailed.
Still cool, though!