Hollow Earth concepts are one of my obsessions in research. I am intrigued by many things like spontaneous human combustion, creatures living in caves, shadow people, and the like, but Hollow Earth has been a fascination since I first saw the movie "Journey to the Center of the Earth."
It is the same for researcher Dennis Guern, and the reason we have decided to begin a deep research into the concept and any possible evidence of such a place.
Can a layer of civilization live beneath the surface of the earth? Let's look to some legends told by the people of earth for millennia.