In the French coal basin of Nord-pas-de-Calais, Germany's Ruhr and Saarland, England, Wales, and Belgium, coal was brought to the surface in hundreds of coal mines for many years. Today, coal mines have become heritage sites or have been demolished.
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On the occasion of International Art Nouveau Day, celebrated each year on June 10, a look at how this ornate architectural movement found its way into the most unlikely of places like coal mines, power stations, and railway yards and the long, sometimes heartbreaking battles to save what remains.
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