Dan Snow finds out what the British landscape tells us about our Norman predecessors, beginning on the cliffs where William the Conqueror first arrived.
Dan Snow's walk around the Monnow river system is dominated by the motte and bailey castles that sprang up in the Norman era.
Dan Snow's walk takes him north to lands devastated by the Normans after the Invasion, but which became the setting for their abbeys and monasteries.
