Overview: Tony Robinson takes us on a grand tour around some of our finest stately gardens, where he visits extraordinary grottoes and fanciful follies, and uncovers sexy secrets concealed in apparently classical designs. He starts at Prior Park garden near Bath, where a two-year project is underway to reinstate Alexander Pope's Wilderness and the 18thcentury Serpentine Lake and Cascade. But he also travels to the breathtaking Hadrian's Garden near Rome, the inspiration for so much that we see in the "traditional" English garden.