George visits the intricately styled Dunster Castle, which pre-dates the Norman conquest of England, learns the fascinating history of Westbury Court Garden, the only fully restored 17th century Dutch-style water garden in the UK, explores Washington Old Hall, a manor house in his hometown of Washington, Tyne and Wear, where the U.S. President George Washington's ancestors lived for centuries, and takes his dog Loki for a stroll around Croome Court's enormous and magnificently designed Croome Park, which was the legendary landscape designer Capability Brown's life's work, that's filled with stunning architecture and plants brought from all over the world.