Mystery of The Disembodied Feet

S06 E01 • Tuesday, Oct 27, 2009 • Oct 27

Inside LSD

S06 E02 • Tuesday, Nov 3, 2009 • Nov 3

Secret History of Diamonds

S06 E03 • Tuesday, Nov 10, 2009 • Nov 10

24 Hours After Asteroid Impact

S06 E04 • Tuesday, Nov 17, 2009 • Nov 17

Nazi Mystery: Twins from Brazil

S06 E05 • Tuesday, Nov 24, 2009 • Nov 24

25 Years

S06 E08 • Monday, Apr 19, 2010 • Apr 19

Journey to an Alien Moon

S06 E09 • Tuesday, Apr 20, 2010 • Apr 20

Fatal Insomnia

S06 E10 • Tuesday, Apr 27, 2010 • Apr 27

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.

Talibanistan

S06 E11 • Tuesday, Jun 8, 2010 • Jun 8

Electronic Armageddon

S06 E12 • Tuesday, Jun 15, 2010 • Jun 15

Inside the DEA

S06 E13 • Tuesday, Aug 10, 2010 • Aug 10

24 Hours After Hiroshima

S06 E14 • Tuesday, Aug 17, 2010 • Aug 17

Albino Murders

S06 E15 • Tuesday, Aug 24, 2010 • Aug 24

Inside Bioterror

S06 E16 • Tuesday, Aug 31, 2010 • Aug 31

Can the Gulf Survive?

S06 E17 • Tuesday, Sep 28, 2010 • Sep 28

Lost Mummies of New Guinea

S06 E18 • Tuesday, Nov 16, 2010 • Nov 16

How Man Tamed the Wild

S06 E19 • Tuesday, Nov 23, 2010 • Nov 23

Born to Rage?

S06 E20 • Tuesday, Dec 14, 2010 • Dec 14

American Hostage

S06 E21 • Monday, Jan 17, 2011 • Jan 17

Lost Cannibals of Europe

S06 E22 • Monday, Jan 24, 2011 • Jan 24

How to Build a Beating Heart

S06 E23 • Monday, Feb 7, 2011 • Feb 7

Clash of the Americas

S06 E24 • Monday, Feb 14, 2011 • Feb 14

Finding the Lost da Vinci

S06 E25 • Sunday, Mar 18, 2012 • Mar 18

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.

The Man Who Can Fly

S06 E26 • Sunday, Feb 12, 2012 • Feb 12

Fighting ISIS

S06 E27 • Saturday, Mar 5, 2016 • Mar 5

National Geographic writer Neil Shea travels to the heart of Kurdistan on a quest to meet the Kurdish fighters on the front lines against the world's biggest terrorist threat, ISIS.