Category: Nature
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Bergen op Zoom (NL)
The Fortified Town of Bergen op Zoom: The impregnable fortified town; part of the Zuiderwaterlinie
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Geertruidenberg (NL)
The Fortified Town of Geertruidenberg – The „Key to Holland“ in Dutch military history
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Willemstad (NL)
The fortified model city of Willemstad, stronghold of the Seven Provinces – where history lives within the ramparts; part of the Zuiderwaterlinie
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Valle Sabbia (IT)
Rocca d'Anfo fortress: Italy's largest Napoleonic fortress; nature, architecture and history high above Lake Idro
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Suomenlinna (FI)
Sveaborg sea fortress on the outskirts of Helsinki, experience unique fortress history in a UNESCO World Heritage Site
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Dahn (DE)
Fortified castles in Dahn (DE), romantic castle ruins in the Palatinate Forest


