We’re joined by properties curator Mark Douglas to discover the stories of the English Heritage sites that played their part in defending England’s northern territories. Join us on an audio tour of the key defences through the ages, from Hadrian’s Wall to Carlisle, Norham, Berwick and Dunstanburgh Castles, and find out what happened to them during peacetime until war broke out across Europe.

To discover more about our collection of castles, go to www.english-heritage.org.uk/castles