The Lost Underground Freight Canal | Exploring 131 Feet Below Ground by Boat

Beneath the streets of Zabrze, Poland, lies an astonishing system of underground canals, forgotten for decades and rediscovered by accident. Built in the 19th century, this adit was a key piece of the Industrial Revolution, connecting coal mines to markets across Europe. But this place is more than just a feat of engineering—it also bears witness to the lives of miners who worked here under extreme conditions.

What other secrets and stories await discovery in these depths? Join us on this journey to find out.