Secret information hidden in this toilet was collected periodically by Harry Houghton. In 1961 he was sentenced to 15 years ...

A new five-part podcast series from Sky News and Tortoise called The Wargame simulates a Russian attack on the UK. It is the ...

What could they possibly be hiding? From military hardware to evidence of life on other planets – these intriguing ‘top ...

Once a torpedo testing site, a 1950s circular tank in London’s Royal Bushy Park has been transformed into Rotunda, a ...

Across Europe, many countries have networks of bunkers that can hold millions of people and clearly publicised emergency ...

Pictures have revealed the interior of a former Cold War radar station believed to be the country's longest occupied. RAF ...