Once only indicated through a sketch by Leonardo da Vinci from around 1495, concealed passageways have been discovered ...

PETER GINN: Castles dominated the landscape of the medieval age and Britain have some ... geometry was the jewel in the crown of their art. Using just a compass, angles and shapes could be drawn ...

Archaeologists and academics flock to the castle to see their theories tried out and put into practice. Above all, building a medieval castle requires the skill and co-operation of a workforce ...

The find has now been acquired by Norwich Castle Museum & Art Gallery and more information about it has been revealed thanks to a medieval French expert who was able to translate its inscription ...