EarthX Website: https://earthxmedia.com/
A look inside a cutting edge, mega-strong military cave. Built under 2,000 feet of granite, and complete with 25-ton blast doors, this huge complex can resist almost any type of attack.
This clip comes from Season 1, Episode 2: "Gibraltar"
About "Underworld:"
Embark on a journey deep into the unknown 95% of our planet, revealing extraordinary caves with 3D laser-scanning technology.
1 min 9 sec
2025