George visits the majestic 1,000-year-old Dunster Castle in Somerset, once home to a clan who spent six centuries renovating it from fortress to family home. He discovers it's not size that matters at the country's finest surviving 17th-century water gardens, Westbury Court in Gloucestershire, and goes back to his roots in Tyne and Wear at Washington Old Hall, the ancestral home to the first president of the USA. George then trumps it all with a walk around the glorious Croome Park in Worcestershire, the 32-year labour-of-love of 'England's Greatest Gardener', 18th-century landscape architect Lancelot 'Capability' Brown.

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.