What are some of the best fortified historical fortresses in your opinion? - Quora

What are some examples of military forts? - Quora

Why did the middle ages castles have so many towers? - Quora

What is the most impressive Fort in Europe? - Quora

What kinds of fortifications are used in modern combat? - Quora

What are some of the best castles to visit in the USA and why? - Quora

How to tell if a castle is real or fictional - Quora

What are some of the most famous/beautiful castles in Britain? - Quora

How would you design the most impenetrable medieval fortress? - Quora

How many forts did the Romans build in England? - Quora

What are some of the best fortified historical fortresses in your opinion? - Quora