READ MOREOthers suggest the linked tunnels were used as an ancient underground superhighway for people to travel safely regardless of wars, violence, or even weather above ground.
“In Bavaria in Germany alone we have found 700 meters of these underground tunnel networks. In Styria in Austria we have found 350 meters. Across Europe there were thousands of them – from the north in Scotland down to the Mediterranean.
Most are not much larger than big wormholes – just 70cm wide – just wide enough for a person to wriggle along but nothing else. They are interspersed with nooks, at some places it's larger and there is seating, or storage chambers and rooms. They do not all link up but taken together it is a massive underground network.” ■