What if everything you’ve ever been taught about the Earth is a lie? In this gripping episode of Axis, we journey into the heart of one of history’s most enduring and bizarre theories: Hollow Earth. From ancient myths and spiritual kingdoms to Admiral Byrd’s Antarctic expeditions, Nazi occultism, and modern conspiracies, we connect the dots between fact, folklore, and flat-out fantasy. Is there a lost world beneath our feet or just clever fiction passed off as truth? And could strange scientific anomalies suggest there’s still something we’re missing?