[hammock]

St. Kinga Chapel in the Weilizcka salt mine, complete with relief carving of the Last Supper, salt crystal chandeliers, carved statues and altars was entirely made by trade miners, not skilled scuptors. If you spend enough time in a mine you can get good at that stuff

https://en.wikipedia.org/wiki/Wieliczka_Salt_Mine

[lproven]

Been there twice. Absolutely astounding place... and the bit that's open to the public is I believe about 2% of the mine.