Find the Secret
@PrimHalo3, most of those structures either lagged so bad they were unplayable or, they self destructed. One of the reasons is, that you have too many incompatible elements and too many horizontal pieces stacked on each other.
To test your structures, use the "settle" button.
So, I took your last two and added some stuff of my own and, well, can ya git it in one shot? Look impossible?
Keep trying but test first.... Happy crushing!