Thousands of curious visitors venture to the Pirunkirkko or ‘Devil’s Church’ cave in eastern Finland, in the fervent hope of the contact with the spirit world, specifically, to ‘talk to the Devil’...
Deep within Luray Caverns , Virginia, USA, an astonishing fusion of music and nature awaits: the Great Stalacpipe Organ. This extraordinary instrument defies expectations, utilizing delicate...
The Chislehurst Caves are a series of subterranean tunnels , man-made rooms, and caverns located in the southeastern part of Greater London . Although the history of the caves stretches back much...
In Northern Italy’s Friuli-Venezia Giulia you can find the town and commune of Cividale del Friuli, where there is a fascinating and mysterious site – the Celtic Hypogeum. This subterranean wonder...
The Hellfire Caves of West Wycombe are a network of man-made chalk and flint caverns in Buckinghamshire, England, made famous by their sordid past. They are named after the infamous Hellfire Club,...