EXPLORING the lost tunnels of Liverpool. “Of all the engineering projects that ever took place in the industrial centre of Liverpool – like the world’s first exclusively steam-powered passenger railway – the building of the Williamson Tunnels in the early 19th Century must be the most mysterious. The patron of the tunnels, tobacco merchant Joseph Williamson, was extraordinarily secretive about their purpose. Even today, no one is sure exactly what they were used for. Nor does anyone know for sure even how many of the tunnels there are, scattered underfoot beneath the Edge Hill district of Liverpool in northwest England.”