![Royal Salt Mines in Wieliczka and Bochnia, Poland | World Heritage Journeys of Europe](https://cdn.elebase.io/173fe953-8a63-4a8a-8ca3-1bacb56d78a5/5084b0a4-ce1c-4a8b-a60b-4a680159d3cf-akhrushev-underground-staircase-in-the-corridor_72.jpg?q=90)
'White Gold' Why was so much labour, ingenuity, and creativity spent in the salt mines? Prior to industrialisation, it was extremely expensive and …
* View the article originally published here. ** More curations: Al Cannistra at San Antonio ONE here.