An eruption of Mount Vesuvius at night; people watching the eruption in the foreground. Coloured aquatint by Fr. Weber after… https://www.rawpixel.com/image/13962541/image-person-art-fireFree Image from public domain licenseEruption of Mount Etna at night; people in a boat in the foreground. Aquatint by F. Weber after A. d'Anna, ca. 1820. https://www.rawpixel.com/image/13952460/image-cloud-people-fireFree Image from public domain licensePohutu Geyser, Rotorua. From the album: Camera Pictures of New Zealand (1920s) by Harry Moult. https://www.rawpixel.com/image/13028518/image-paper-cloud-steamFree Image from public domain license[Untitled photo, possibly related to: Carloads of iron ore at Mahoning pit. Hibbing, Minnesota]. Sourced from the Library of… https://www.rawpixel.com/image/12286526/photo-image-steam-person-smokeFree Image from public domain license[Untitled photo, possibly related to: Albany Mine, Hibbing, Minnesota]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12285034/photo-image-person-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Carloads of iron ore at Mahoning pit. Hibbing, Minnesota]. Sourced from the Library of… https://www.rawpixel.com/image/12286320/photo-image-steam-person-smokeFree Image from public domain licenseWorld's largest open pit iron mine at Hibbing, Minnesota. The pit is two and a half miles long, three quarters of a mile… https://www.rawpixel.com/image/12286324/photo-image-cloud-sky-smokeFree Image from public domain licenseYauco (vicinity), Puerto Rico. Tobacco farmer in the hill country. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284877/photo-image-face-hand-peopleFree Image from public domain licenseEnsenada, Puerto Rico. Carloads of sugar cane at the South Puerto Rico Sugar Company. Sourced from the Library of Congress. https://www.rawpixel.com/image/12280082/photo-image-plant-sky-smokeFree Image from public domain licenseCharlotte Amalie, Saint Thomas Island, Virgin Islands. Bluebeard Castle Hotel on top of a hill, seen from the old fort.… https://www.rawpixel.com/image/12280444/photo-image-cloud-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Northern Pacific freight train going over Bozeman Pass. Gallatin County, Montana].… https://www.rawpixel.com/image/12273581/photo-image-plant-sky-forestFree Image from public domain licenseLincoln, New Hampshire. One-industry town, home of Parker Young paper mills who employ about six hundred men. Sourced from… https://www.rawpixel.com/image/12248286/photo-image-paper-sky-smokeFree Image from public domain license