Arms and Armour
The Castle of Gormaz (Spanish: Fortaleza de Gormaz or Castillo de Gormaz) is a large castle located in Gormaz, Spain. Its current structure was built in 965 to defend the borders of the Caliphate of Cordoba. At the time of its construction, it was the largest fortress in Europe.
Fortifications of ancient Smyrna.
Battle of Douvres Radar Station.
Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.