Experts are still trying unravel the secrets of the mind.
Mind bending tests that are having these people scratching their heads.
Images from the new episodes of Alaska State Troopers.
The Human Stash
Captured moments of man and dog in training situations.
Metal detectors, exploring and digging all add up to a good old time for these guys.
See photos of the border security officers in action
Animated Images from the Known Universe
In the animal kingdom, there's no shortage of bizarre behaviour. Take a look at some real freaky images of some weird and wonde...
At JFK International Airport in NYC, officers encounter extreme smuggling cases.
The team uses underwater footage taken from Cameron’s dives to the wreck to examine how the ship broke apart.
Stonehenge Decoded (4)
Explore people and cultures that some consider Taboo.
The decade when mass production came to Britain
A look at some iconic machines from the 1950s