People taking a train journey in or out of Liverpool may well have caught the faintest glimpse of a tiny house deep underground.
The little house sits between the train tracks at Lime Street station, and is easily missed in the dark station cutting. The house is also dangerous and difficult to get to as there are busy, live railway tracks on either side.
But back in 2017, while the station was closed for 23 days for renovation works, one worker was able to take a photograph of the blackened, eerie little house complete with its chimney. The house is thought to be more than a century old and was originally built as a "mess hut" according to Network Rail.