The story of Joseph Williamson, the rich and eccentric Liverpool businessman, has been baffling and intriguing people for 180 years since his death in 1840. His fascinating underground world has the ability to amaze and baffle all visitors who come on a tour of the tunnels that have been re-discovered. They leave with some answers as to how and why they came about, but usually with a head full of many more unanswered questions. This talk and slide show tries to cover the whole story of Williamson and the work of the Friends of Williamson's Tunnels in re-discovering lost tunnels, emptying them out of 180 years of in-fill and making them accessible for the public to enjoy. The story is now too big to cover in one hour long presentation. There is a series of several more talks which are better as a follow-on for people wanting to know more about this fascinating story. I can present talks based on a walk-through of two of our main sites and also a talk based on the discovery of one site and its early exploration. Another talk about an 1880s railway cutting being driven through Williamson's land and one of his largest tunnels, is a connected subject that may be of interest to those who already have an interest in Williamson's underground exploits. Each talk is about an hour long. The Williamson Tunnels have now become a major tourist attraction for people visiting Liverpool but these talk give an intriguing visual insight for those who can't visit in person.