Jules Verne's science fiction pulp classic, Journey to the Center of fthe Earth may have been inspired by tales of a kingdom hidden in the depths of the earth with its own diffuse sun and unusual flora and fauna. The Hollow Earth theory has always been an interesting mystery, even if Google Maps doesn't show any visible hole in the North Pole showing us how to enter the GeoFront. Is an underground mystical kingdom an absurd relic of the past or is there anythig concrete about an Inner Realm with a kingdom known as Agartha?
