This major industrial undertaking has royal status and is the oldest of its type in Europe. The site is a serial property consisting of Wieliczka and Bochnia salt mines and Wieliczka Saltworks Castle.

The chosen location was a salt mine in Austria, which the Nazis tried to bomb later when they realised they were losing the war. How did the art survive? Video by Martina Žoldoš Produced by ...

But extracting the coveted salt means descending into dark caves, then blasting and carrying heavy rock. Faizan Panjwani: The problem is the massive size of the blocks that come from the mine.

As part of Ukraine's ongoing effort to combat Russian disinformation and memorialize its own history, the United24 charity ...