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The lost tunnels buried deep beneath the UK

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Interesting read from The BBC on a 200 year old system of tunnels hidden below the streets of Liverpool.

The air is still. It’s quiet. Occasionally, the sound of a water droplet bursting feebly onto stone echoes through the chamber. Somewhere, somehow, moisture is getting in. But for the most part, it’s dry. And were it not for the smattering of electric lights, this 200-year-old tunnel beneath the streets of Liverpool would be very dark – and very lonely.

Of all of Liverpool’s engineering projects over the last 200 years, the building of the Williamson Tunnels must be the most mysterious
“I still can’t get over the ferns and the moss,” says Dave Bridson, a local historian and manager at the Williamson Tunnels heritage centre in Liverpool, England. He points out where the water seeps through the porous stone, nurturing the light green moss that has formed spontaneously next to lightbulbs. Ever since light was brought into the long-lost tunnels, little pockets of vegetation like this have taken hold.

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