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[Ravne tunnel entered August 10, 2011 Video - Published on July 28, 2012]
Ravne underground tunnel labyrinth in Visoko, Bosnia and Herzegovina, has been dated as Europe's oldest prehistoric tunnel network, where human presence endured for over 30,000 years. A date of up to 40,000 B.C.E. has been suggested by carbon dating of organic material found in the tunnel network.
In contrast to ancient mining tunnels, Ravne underground tunnels does not show traces of ore extraction. Moreover, it is possible to breathe freely anywhere inside the tunnel labyrinth without auxiliary respiratory support, while ancient (and modern) ore mines need a source of external oxygen.
The presence of health-giving negative ions in the air in Ravne tunnels is up to 40 times higher than anywhere else in nature. Scientific studies using negative ion-heavy air on different life forms have shown amazing positive results.
For example, a great deal of research carried out by modern scientists has shown that a small amount of negative ions can kill microbes that cause colds, influenza and respiratory infections. Further research in this area has also demonstrated that an excess of positive ions leads to an overproduction of serotonin which initially creates hyperactivity, leading to exhaustion, anxiety and depression. On the other hand, an excess of negative ions appeared to have a calming effect, reducing excess levels of serotonin in the brain.
Independent researcher Nenad Djurdjević and writer and videographer Jock Doubleday will accompany you on a research trip deep into the vast underground labyrinth, which hides some of the biggest mysteries of modern archaeology. Artificial dry-stack stone walls erected for unknown reasons, and ancient stone artifacts potentially linked to Old European religious and magical cults related to fertility, regeneration, afterlife and resurrection, tell a story of a sacred place of worship long forgotten and shroud in the mists of prehistory.