Snowdonia's quarries that 'roofed the 19th century world' could become next Unesco heritage site 

  Snowdonia's quarries in Wales are said to have roofed important buildings around the world, including Copenhagen city hall and the Royal Exhibition Building in Melbourne. .. Full story on dailymail.co.uk 

snowdonia, unesco, quarries, roofed, century, heritage Image source : dailymail.co.uk
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