It is a long journey down into the dark - and back into the depths of history. But it certainly isn't a trip for the claustrophobic. The ancient tunnels of Hirbet Madras near the Sea of Galilee, in Israel, are so tight that they are almost impassable in places.
The sprawling underground labyrinth was dug by Jewish rebels fighting the Roman empire. Archaeologists believe some of the maze could date back to the first century BC. It is a fascinating part of history which attracts visitors from across Israel. But it is virtually unknown to foreigners.
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