Factory smoke across pasture land. Original public domain image from Flickr https://www.rawpixel.com/image/8800084/photo-image-smoke-public-domain-cowFree Image from public domain licenseThe enraged musician: a street crowd with a ballad singer is creating such a noise that the musician in the window has to… https://www.rawpixel.com/image/13997108/image-cartoon-hands-personFree Image from public domain license[Untitled photo, possibly related to: Foraging for food, city dump, Dubuque, Iowa. Produce houses dump apples, grapefruit… https://www.rawpixel.com/image/12311650/image-plant-person-skyFree Image from public domain licensePlantages Jagtlust en Suzanna's Daal (1860 - 1862) by jonkheer Jacob Eduard van Heemskerck van Beest, Gerard Voorduin… https://www.rawpixel.com/image/13752489/image-paper-person-artFree Image from public domain licenseLeaving for upper reaches, Wanganui River by Muir and Moodie. https://www.rawpixel.com/image/13028842/leaving-for-upper-reaches-wanganui-river-muir-and-moodieFree Image from public domain licenseBeijing, Pechili province, China: ruins of the sculptured terrace, Longevity Hill, the Garden of Clear Ripples. Photograph… https://www.rawpixel.com/image/14005924/photo-image-background-frame-personFree Image from public domain licenseA burning building along Taft Avenue which was hit during the Japanese air raid in Barrio, Paranque, December 13, 1941, the… https://www.rawpixel.com/image/12308586/image-person-explosion-skyFree Image from public domain licenseEngineering: a large pumping station. Coloured lithograph, [post 1875]. https://www.rawpixel.com/image/13971037/engineering-large-pumping-station-coloured-lithograph-post-1875Free Image from public domain licenseLoading grain boat at Consolidated Elevator Compamy, elevator "E". Duluth, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284826/photo-image-person-smoke-animalFree Image from public domain licenseCarnegie-Illinois steelworks. Etna, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287030/photo-image-cloud-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Stream pollution. City dump. Dubuque, Iowa]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12282560/photo-image-person-sky-animalFree Image from public domain license[Untitled photo, possibly related to: Columbia Steel Company at Ironton, Utah. A locomotive outside the blast furnace].… https://www.rawpixel.com/image/12297747/photo-image-person-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: A freighter pulling into New York Harbor]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12264375/photo-image-sky-smoke-animalFree Image from public domain license