Overview: In Devon, George visits one of the National Trust's quirkiest buildings, a bear hut on the 6400-acre Killerton estate. The main house was given away because of the socialist ideals of the aristocratic family who lived there. George unearths secrets and scandal at Baddesley Clinton Hall, a fortified Tudor manor house in Warwickshire where in the past the architecture has meant the difference between life and death, then heads home to the north-east for a walk through Gibside Estate, a landscape park with royal connections and crowned with jaw-dropping architecture.