The Nuclear War Base Designed To Save The Nation [4K] | Underground Britain | Spark

This week, the expedition took Rob Bell to southern England to discover the secrets beneath the surface. Watch as discovers a tunnel built to search for the most precious metal on earth, a top installation designed to save the nation when necessary, and uncover a subterranean cave with a mystical past. --- This series follows Rob Bell as he travels across Britain to discover the most fascinating secrets hidden beneath the surface. --- Subscribe to Spark for more amazing science, tech & engineering videos: https://goo.gl/LIrlur 🚀 Join the Spark Channel Membership to get access to perks: https://www.youtube.com/channel/UCMV3aTOwUtG5vwfH9_rzb2w/join Find us on: Facebook: https://www.facebook.com/SparkDocs/ Instagram: https://www.instagram.com/spark_channel/ Any queries, please contact us at: owned-enquiries@littledotstudios.com #Spark #cave #underground