The pictures shown are interesting because they show a type of architecture I have never seen before, not even in movies. How come it didn’t prevail if it is the ideal form of fortification?
![](https://friendswithanoldbook.delbeke.arch.ethz.ch/wp-content/uploads/2021/11/Bildschirmfoto-2021-11-02-um-13.05.23-1.png)
![](https://friendswithanoldbook.delbeke.arch.ethz.ch/wp-content/uploads/2021/11/Bildschirmfoto-2021-11-02-um-13.02.57-1.png)
The pictures shown are interesting because they show a type of architecture I have never seen before, not even in movies. How come it didn’t prevail if it is the ideal form of fortification?