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Pniówek Coal Mine

Silesia

As Pniówek Coal Mine, it operated from its opening in 1963 to 1975, when it was renamed XXX-lecia PRL Coal Mine. That super-mine was an ambitious investment – at the end of 2011, it employed 5,362 people. Although it is marked with the fourth lowest category of methane hazard, in 2022, there was a methane explosion. Eight people died, and 30 were injured in the crash.

The European Union, associated with the policy of open borders, is currently surrounded by over 2,000 kilometers of border fences.