About this episode
From hidden catacombs to wild rumors about a hollow earth, the world is full of subterranean stories. But which are total bunk, and which have the ring of truth? Tune in to learn more. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/ See omnystudio.com/listener for privacy information.