In the English city of Nottingham, shoppers and workers go about their days oblivious to the secrets beneath their feet. Underground, a vast network of hidden chambers crisscrosses through the soft sandstone. But these rocks have kept their secrets for more than a thousand years.
Amazingly, there has been a settlement in Nottingham’s location since before the 5th century, when the Anglo-Saxons arrived in England. Prior to this, the region was inhabited by Celts who dubbed the city Tigguo Cobauc in the old Brythonic language – which translates as Place of Caves.