Source: Wikipedia
Salina Turda is a 2,000-year-old salt mine in Transylvania. Closed for production in 1932, it sat largely forgotten until 1992 when it reopened as something unprecedented: an underground amusement…
Source: Wikipedia
The town of Blaenau Ffestiniog in north Wales sits on slate deposits that, at industry's peak in the 1880s, roofed buildings across the British Empire and beyond. By the…