The world's most fascinating fortresses
From castles to military facilities
Humans have been building fortresses since the dawn of time. From strategically placed castles to facilities where certain activities can be conducted in a safe environment, the world is full of formidable fortresses. But which exactly are the most fascinating ones and why? In this gallery, we present you with a selection of amazing structures, from hilltop castles to underground military bases.
Browse through and discover the world's most fascinating fortresses.
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