Here are just four of the strangest subterranean spots you never knew were there.
From letters of one of WWII’s most tragic victims to Napoleon's hat…
We see what they would have looked in real life for the very first time...
Watch a clip taken from the fakes and forgeries series Treasure Detectives.
Throughout the centuries marriage has taken many different forms.
Ever wondered just how modern medicine got to where it is today?
We've now come now to the 17th century in our trip through a thousand years of history.
Britain in the 1950s was still trying to shake off Victorian attitudes to sex.
Before miniskirts, thighs were rarely seen away from the beach or the swimming pool.
The Mini Cooper first rolled off production lines in 1959.
LSD, or acid, was popularised in the 60's among students and hippies.
During his National Service, Bailey bought his first camera, sparking a fresh career
Peace in 1945 brought a sharp rise in births for some years - the so-called Baby Boom.
Concorde cut the normal flight from London to New York, from 6 hours to just over 3!
The 1960s were a turbulent decade and 1968 was a turbulent year.
There have always been robbers but we didn't always have cops.