Ideas for the impassable terrian piece.

Looking for something different for either my impassable or a village terrain piece. A castle seems like a nice modelling project. Of course do you go for the impassable option which has a 1/3 chance of being lifted on a 5 or 6. Or claim it as a village so it is less likely wanting to be removed by your opponent.

However here is a guide someone has done on scratch building the castle: