Across the world, mysterious locations are revealing clues about lost civilisations, hidden structures, and secrets buried deep in history. In Expedition Files Season 1 Episode 4, the investigation is unfolding as ancient mysteries begin to connect with discoveries that challenge what we know about the past. From ancient lost cities discovered to mysterious ancient ruins, every lead is pulling the search deeper into the unknown. With Josh Gates guiding the investigation, Expedition Files Episode 4 explores mysterious places on Earth, uncovering hidden civilisations' history, and questioning the truth behind unsolved ancient secrets. These lost cities of the world are not just stories anymore, the evidence is emerging through forgotten structures, ancient clues, and shocking revelations. Secrets of the ancient are waiting to be uncovered. Watch Expedition Files on the Discovery Channel India. 🔔Subscribe Now! - https://www.youtube.com/@DiscoverychannelInd?sub_confirmation=1 🎥Watch Man vs Wild With PM Modi and Bear Grylls - https://www.youtube.com/playlist?list=PLN4N_L1U4V6me_IiXfiUhpMfAlTrCROR1 🛸 Explore UFO Mysteries: https://www.youtube.com/playlist?list=PLN4N_L1U4V6kAsEV2KRmpKb9TjGsNzX04 👍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