Millennial tunnels stretch across Europe, leading from Northern Scotland to the Mediterranean Sea! It is unlikely that anyone will deny that these 12,000-year-old underground roads are truly spectacular! According to some experts, this was an ancient way of protecting humans from predators. At that time, these tunnels were used as today’s highways: for safe movement, regardless of war and weather!
Many experts call these tunnels ‘’underground tunnels’’! There is another interesting theory that these tunnels are gates to the netherworld.
Dr. Heinrich Kusch, a German archaeologist, explored these tunnels for many years, and even wrote the book Secrets of the Underground Door to the Ancient World. The scientist claims that if these tunnels have survived for more than 12,000 years, then they are truly huge.
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