Old gold mine buildings, Rodalquilar, Cabo de Gata natural park, Almeria, Andalusia, Spain, Europe

Old millstones, Stanage Edge, fine spring day, near Hathersage, Peak District National Park, Derbyshire, England, United Kingdom, Europe

Views of the abandoned whaling station at Grytviken, Swedish for Pot Cove, on South Georgia in the South Atlantic, Polar Regions

Views of the abandoned whaling station in Prince Olav Harbor on South Georgia, Southern Ocean, Polar Regions

Views of the abandoned whaling station in Stromness Bay on South Georgia, Southern Ocean, Polar Regions

Santa Laura Salpeter mine, UNESCO World Heritage Site, Atacama desert, Chile, South America

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

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

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America