Pile of mined salt at Maras salt marsh terraces, Salinas de Maras, Cuzco Region, Peru, South America

The iron ore mine Cockerill d'Esch-sur-Alzette played a major role in economic boom from the 1870s to the 1990s, Luxembourg

Detail of salt pans of Maras, Salinas de Maras, Cuzco Region, Peru, South America

The historic graveyard at this former mining settlement & second highest village in Scotland. Leadhills, South Lanarkshire, Scotland, United Kingdom, Europe

The historic graveyard at this former mining settlement and second highest village in Scotland, Leadhills, South Lanarkshire, Scotland, United Kingdom, Europe

Detail of salt pans of Maras, Salinas de Maras, Cuzco Region, Peru, South America

Salt pans of Maras, Salinas de Maras, Cuzco Region, Peru, South America

Sewell Mining Town, UNESCO World Heritage Site, Chile, South America

Aerial of Sewell Mining Town, UNESCO World Heritage Site, Chile, South America

Sewell Mining Town, UNESCO World Heritage Site, Chile, South America

Sewell Mining Town, UNESCO World Heritage Site, Chile, South America

Rhyolite Mercantile, a General Store, in the ghost town of Rhyolite, a former gold mining community, Death Valley, near Beatty, Nevada, United States of America, North America

Gold Mining Ghost Town of Bodie, Bodie State Historic Park, California, USA

Arctic Getaway Bed and Breakfast Signage, Arctic Alaska in autumn; Wiseman, Alaska, United States of America

Old outhouse, Arctic Alaska in autumn; Wiseman, Alaska, United States of America

Sunset glow on the metal chicken sculpture and signpost on the hill of historic mining town Chicken, Interior Alaska in autumn; Chicken, Alaska, United States of America

National Historical Site, the Pedro Dredge in warm sunset light, Interior Alaska in autumn; Chicken, Alaska, United States of America

Wiseman Historical Museum log cabin, Arctic Alaska in autumn; Wiseman, Alaska, United States of America

Wiseman entrance signage with hand written message and map, Arctic Alaska; Wiseman, Alaska, United States of America

Antlers signpost by Koyukuk River, Brooks Range is in the background, Arctic Alaska in autumn; Wiseman, Alaska, United States of America