Season 6 Episodes
1. Mystery of The Disembodied Feet
2. Inside LSD
3. Secret History of Diamonds
4. 24 Hours After Asteroid Impact
5. Nazi Mystery: Twins from Brazil
8. 25 Years
9. Journey to an Alien Moon
10. Fatal Insomnia
An extremely rare genetic disease passed down through generations, fatal familial insomnia's (FFI) primary symptom is sleeplessness, but with a fatal twist: victims are dead within months. National Geographic delves into the science of sleep to find out why we need sleep and what happens to us when we don't get it. Witness the pioneering research inside the sleeping brain as well as the mind forbidden to rest for days at a time.
11. Talibanistan
12. Electronic Armageddon
13. Inside the DEA
14. 24 Hours After Hiroshima
15. Albino Murders
16. Inside Bioterror
17. Can the Gulf Survive?
18. Lost Mummies of New Guinea
19. How Man Tamed the Wild
20. Born to Rage?
21. American Hostage
22. Lost Cannibals of Europe
23. How to Build a Beating Heart
24. Clash of the Americas
25. Finding the Lost da Vinci
Leonardo da Vinci's "The Battle of Anghiari" vanished 500 years ago, with only copies rendered by other artists left behind to confirm its existence. Scientist and art enthusiast Maurizio Seracini, has dedicated 36 years to tracking down the missing mural, and seems to be on the verge of uncovering the hidden fresco behind the walls of the Palazzo Vecchio in Florence, Italy.
