Poland’s Wieliczka Salt Mine: Extraordinary Underground Chapels, Art, and History2023-07-07మన చుట్టూ ఉన్న ప్రపంచం వివరాలుడౌన్లోడ్ Docxఇంకా చదవండిThe miners created the underground chapels as places where they could pray and seek refuge, before an arduous day working in the mines.