Watch George Clarke's National Trust Unlocked Season 1 Episode 4 Online

George visits the magnificent and meticulously crafted country retreat of Standen in West Sussex - one of the best examples of the Arts and Crafts design movement to be found anywhere in the world. He discovers a masterpiece of Gothic Revival architecture at Tyntesfield in Somerset, with its acres of flower-filled terraces, and unleashes a medieval catapult at Corfe Castle in Dorset, an iconic ruin who's first stone was laid almost a millennium ago, before risking vertigo with his trusty companion Loki at the highest point on England's south coast - the famous Golden Cap.