10,000 MILES of Tunnels: What Ancient Humans Built Beneath the Earth

Something strange is happening beneath the Earth... and the deeper you look, the more impossible it becomes to explain. From sealed passageways under ancient cities to vast tunnel systems that appear connected across continents, new evidence suggests something far older may be buried below us. In this investigation, we explore the secret tunnels beneath the Earth — mysterious networks carved through solid rock long before recorded history. Who built them, how far do they go, and why were they hidden? ►Become a channel member today: / youtube.com/@TheUnchartedMysteries/join 0:00 – Intro 2:46 – Derinkuyu Underground City 8:03 – Teotihuacan’s Secret Tunnels 14:56 – Chavín de Huántar Tunnels 19:31 – Agharta & Hollow Earth Myths 23:17 – Native American Legends of Underground Peoples 28:28 – The Longyou Caves 33:30 – The Mammoth Cave System 38:50 – China’s Underground Great Wall 43:24 – Mount Yamantau 49:11 – Phil Schneider’s Testimony & Dulce Base Attributions for images used in video: https://docs.google.com/document/d/1a0U_AyaIwbRQW9-RxDto5vjl_q5w2pUOtw_XwOnFpm8/ DISCLAIMER: The pictures, audio, and video used in the videos on this channel are a mix of paid stock, by attribution, royalty-free, public domain, or otherwise fall under the guidelines of fair use. No copyright infringement is intended. All rights belong to their respective owners. If you are or represent the copyright owner of materials used in this video and have an issue with the use of said material, please contact me directly. I will respond immediately. As images and footage of actual events are not always available, Uncharted Mysteries sometimes utilizes similar historical images and footage for dramatic effect. I do my best to keep it as visually accurate as possible. All content on Uncharted Mysteries is researched, produced, and presented in historical context for educational purposes. We are history enthusiasts and are not always experts in some areas, so please don't hesitate to reach out to us with corrections, additional information, or new ideas.