Fort de Bèrnia, Military ruins on Sierra de Bernia, Callosa d'en Sarrià, Spain.
Fort de Bèrnia is a ruined mountain fortress on the Sierra de Bernia with surviving walls and defensive structures designed according to Italian Renaissance military principles. The structure comprises multiple defensive zones arranged strategically along the ridge to command views over the coastal plains below.
The fortress was built in 1562 under King Philip II to defend the coast against Ottoman attacks. A century later King Philip III ordered its destruction to prevent Moorish rebels from using it as a stronghold.
The fortress reflects how Spain sought to control both foreign threats and the local population during the 16th century through military presence. What remains today shows how Renaissance military design shaped the fortification into a structure meant to dominate the landscape.
Access is via a marked hiking trail starting from the Casas de Bernia settlement that takes several hours to climb. Bring sturdy footwear and plenty of water since the route ascends steeply with minimal shade along the way.
The fortress was deliberately demolished rather than simply abandoned, which sets it apart from many other ruins. This intentional destruction by royal order makes it historically unusual and reveals the political conflicts of that era.
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