Polish Salt Miners Create An Underground Architectural Wonder

Meera Dolasia
Sat, 03 Dec 2011 11:20:53 -0800

While today salt is a cheap commodity, such was not the case in the Middle Ages, when refrigerators were not yet invented and the only way to preserve food was by packing it in salt. Hence, it was not surprising that salt mines were worth their weight in gold - Literally.