Beneath the Earth's surface lies a hidden world of forgotten tunnels, secret bunkers and unexplored caves. Josh Gates ventures into these underground spaces, investigating mysterious structures, tracing hidden histories and exploring places that few have ever seen. From deep-earth discoveries to subterranean hideouts, every expedition brings new questions about what lies beneath our feet. What secrets will Josh uncover in the darkness? Watch Expedition Unknown, Season 2, Episodes 13, 14, 10 and 2; Season 3, Episodes 14 and 5; Season 1, Episode 3; and Season 4, Episode 10, on Discovery Channel India. 🔔Subscribe Now! - https://www.youtube.com/@DiscoverychannelInd?sub_confirmation=1 🌍 Explore the World’s Greatest Mysteries: https://www.youtube.com/playlist?list=PLN4N_L1U4V6k5x_TLcFjME16xWvvd93Rs 🏕️ Watch Epic Survival Series: https://www.youtube.com/playlist?list=PLN4N_L1U4V6lP-kyI7OBnnCOfGHYU1t8y 👍Do Not Forget To Like, Share, and Comment on Our Videos. 📲Also, Follow Us on Social Media Facebook: www.facebook.com/DiscoveryChannelIndiaOfficial/ Twitter: twitter.com/DiscoveryIN Instagram: www.instagram.com/discoverychannelIn/ #discoverychannel #discoverychannelshows #discoverychannelindia