Brickshelf user wobnam‘s prison tower creation features an interesting architectural design of having a heavier top section of the tower resting on a narrower neck. The whole concept of solitary isolation on a high-rising cell above the water is pretty chilling. I’d hate to be the guy spending the rest of his life in this place.

That structure would never hold. A fly could land on it and it would fall over!
Ooooh, giant inverted tower. Very nice!
I love how the upper section looks like it sort of floating there.
This deserved a closer look. The use of slopes on the corners where it widens is attractive.
i love the draw bridge and it has great detail and it would hold i have made something alot like this