Mass hallucinations, top-secret military experiments, naturally occurring phenomena - find out if there are aliens among us.
Images from Prostitution: The Oldest Trade part of the Taboo series.
Scientist disect the baby mammoth.
Photos from the largest gathering of humans in one place, at one time, on earth.
A look inside Georgia’s maximum security prisons.
DMC puts your belief to the test, making the impossible seem possible with amazing tricks.
An elite group of aerospace engineers and stealth experts rebuild the Horton 229
Images taken from the Essex Bad Boys episode, part of the brand new Britain's Underworld series.
Cesar tackles two bullying bulldogs whose owners have reached the end of their teethers!
Check out the men and women who set out to find the world’s most precious metals in hope of earning a fortune.
Step on board the Costa Serena and get the low down on one of Europe's largest cruise ships.
Today, an entire workforce of women is just an internet connection and a phone call away.
Alaska’s brutal weather doesn’t make mining for gold easy.
This one-hour special reveals the incredible events when an unarmed crew fought against Somali pirates to regain control of the...
These are the nightmare roads for truck drivers in Canada.
The amazing men, women and families taking on life’s biggest challenges.
Photo gallery for Texas Gang War episode from America's Hardest Prisons series on National Geographic Channel.
These pilots must transport supplies and rescue the lost and injured in areas that only planes can get to.
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