25 Mysterious Discoveries Found Deep Underground

We've mapped oceans, taken photos of distant galaxies, and sent spacecraft out of the solar system. Meanwhile, some of Earth's strangest discoveries have been sitting right under our feet. Miners, archaeologists, cave divers, and scientists have all stumbled across things nobody expected to find, from ancient cities to ecosystems that haven’t seen sunlight for thousands of years. You're gonna like this one. These are 25 Mysterious Discoveries Found Deep Underground. Grab your copy of What The Facts now, available on Amazon! Click the link to explore over 500 fun and fascinating facts! 👉👉https://www.amazon.com/WHAT-FACTS-ARE... Please support my channel and get access to perks:   / @list25   🔔 Subscribe for more tips just like this: https://bit.ly/3Ewz99H 🚀 Watch our latest List25 Videos:    / list25   📨 Have a list idea? Submit it here: https://bit.ly/3Mu3gk1 Music: CAVERNS - Density & Time Author: Hestie Bernard 0:00 - Intro 0:32 - An Underground City 1:28 - A Pit of Bones 2:25 - The Longyou Caves 3:15 - A Mile-Long Cartel Drug Tunnel 4:13 - Life in the World's Deepest Cave 5:09 - A Hidden River Beneath Antarctica 5:55 - A Cave of Crystals 6:50 - A Hidden Underwater Mountain 7:48 - Ancient Marine Fossils 8:54 - A Bacterium That Lives on Radiation 9:37 - A New Cave Species 10:38 - Ancient Defense Tunnels Beneath a Stone Age City 11:22 - Hundreds of Hidden Rooms 12:33 - A Hidden Ecosystem 13:15 - A 20,000-Year-Old Freshwater Reservoir 14:16 - Strange Magnetic Waves 15:16 - Ancient Helium Gas 16:00 - A Cave That Runs on Toxic Gas 16:53 - Zones of Melted Rock 17:42 - A Giant Ocean 18:37 - An Ancient Inca Tunnel 19:35 - Something… Strange 20:22 - A 13,000-Year-Old Girl 21:15 - A Colossal Underground Ecosystem 22:08 - The Core's Core 🍿 WATCH OUR OTHER VIDEOS: ► 25 Ancient Discoveries Locked Away for Centuries:    • 25 Ancient Discoveries Locked Away for Cen...   ► 25 Mysterious Discoveries That Science Still Can’t Explain:    • 25 Mysterious Discoveries That Science Sti...   List25 Discord:   / discord   Facebook:   / list25   Instagram:   / list25   Twitter/X:   / list25   Pinterest:   / list25   Mike Instagram:   / michaelbestrin   Instagram:   / dizmelife   Twitter:   / dizmelife   Twitter:   / michaelbestrin   Facebook:   / mikeestrin   Cameo: https://www.cameo.com/michaelbestrin Mike's Other Channel:    / dizmelife   See more lists on our website: http://list25.com Copyright Disclaimer under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research