Here are just four of the strangest subterranean spots you never knew were there.
He knew about slave labour. Should his reputation have been trashed?
What it took to break free from Stalag Luft III…
You know it’s a forbidding, isolated fortress...
The 19th Century had a real rogues’ gallery of eerie killers…
Telling the real stories of the CIA's covert operations.
Throughout the centuries marriage has taken many different forms.
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.