If only the time-worn walls of Thirlwall Castle could talk! But seeing they can't, check if tours are available to hear a few of its stories instead.
When you've finished at this fortified complex in Hexham, why not check out Vindolanda, Housesteads Fort and Museum - Hadrian's Wall, and Housesteads Roman Fort? They're close to Thirlwall Castle and also popular with many tourists.