Williamson Tunnels

The Williamson Tunnels were a series of tunnels beneath Liverpool, built under the direction of Joseph Williamson.

Joseph Williamson's workforce dig one in a series of tunnels under Liverpool. (TV: The Halloween Apocalypse)

Williamson was working on the tunnels in 1820. James Stonehouse argued that they were without purpose, though Williamson argued that he was preparing for "the cataclysmic". (TV: The Halloween Apocalypse)

Alfie's granddad, who was working on the construction, reckoned there were dining halls and bedrooms. According to some claims, there was an army in the tunnels. (TV: Survivors of the Flux)

After Joseph Williamson's death, that took place long before 1904, the tunnels were shut down and all the work was stopped. (TV: Survivors of the Flux)

In 2021, the Williamson Tunnels were being excavated. By that time they had become a tourist attraction. (TV: Survivors of the Flux) The Museum of Liverpool contained an exhibit on the Williamson Tunnels on 31 October 2021. (TV: The Halloween Apocalypse)

Behind the scenes

In the real world, the tunnels' true purpose is unclear, and is the subject of much academic speculation.