At the outbreak of World War Two, with German bombing targeting key infrastructure, it was clear that the production of vital parts of Britain’s war effort would need to be placed out of harm’s way.
The Drakelow Tunnels were built as part of a number of underground ‘shadow’ factories around Britain. The Drakelow factory’s role was to produce aircraft engines for the Bristol Aeroplane Company.
After WWII, the tunnels were requisitioned by the UK government to become a nuclear bunker – ready to house ministers in the event of a nuclear attack.
We sent one of our team into the complex, armed with a 360-degree video camera to explore Drakelow’s 3.5 miles of tunnels.
Follow this link to our Facebook page to take the 360-degree tour.
And remember to look out for hidden facts we’ve placed on the footage.
Here’s a taster:
Join 800,000+ Future fans by liking us on Facebook, or follow us on Twitter.
If you liked this story, sign up for the weekly bbc.com features newsletter, called “If You Only Read 6 Things This Week”. A handpicked selection of stories from BBC Future, Earth, Culture, Capital, Travel and Autos, delivered to your inbox every Friday.