Civil engineering: the pier at Madras, India, built using screw piles (helical piles). Wood engraving, 1863. https://www.rawpixel.com/image/13993984/image-cloud-horse-personFree Image from public domain licenseA house being disinfected, during a plague epidemic in Mandalay. Photograph, 1906. https://www.rawpixel.com/image/13988902/photo-image-cow-plant-personFree Image from public domain licenseHospital de San Julian y San Quirce, Burgos: exterior. Photograph, ca.1900. https://www.rawpixel.com/image/13987045/hospital-san-julian-san-quirce-burgos-exterior-photograph-ca1900Free Image from public domain licenseChelsea old Church and monument to Sir Hans Sloane. Etching by R. Acon after T.H. Shepherd, ca. 1830. https://www.rawpixel.com/image/13976373/image-horse-person-churchFree Image from public domain licenseModel Dwelling in the Mall, Kensington. Built for gentle women of limited means, governesses, artists and skilled artisans. https://www.rawpixel.com/image/13973885/image-dog-horse-personFree Image from public domain license's Gravenhage, 30 April 1940 (1940) by anonymous, anonymous and W ten Have https://www.rawpixel.com/image/13759766/gravenhage-april-1940-1940-anonymous-anonymous-and-ten-haveFree Image from public domain licensePrinses Beatrix in een kinderwagen tijdens de wintersportvakantie in Grindelwald, Zwitserland (1939) by anonymous, anonymous… https://www.rawpixel.com/image/13759742/photo-image-face-person-clothingFree Image from public domain licenseFabriekshal met machines en apparatuur, Duitsland (c. 1910 - c. 1921) by A Gross and A Gross https://www.rawpixel.com/image/13752328/photo-image-paper-person-technologyFree Image from public domain licenseGeneral Motors bus - side view (1931-1940) by Ken Niven and Gordon H Burt Ltd. https://www.rawpixel.com/image/13028593/general-motors-bus-side-view-1931-1940-ken-niven-and-gordon-burt-ltdFree Image from public domain licenseGrand Hotel, Dunedin. From the album: Land of Loveliness New Zealand (1880s) by Burton Brothers. https://www.rawpixel.com/image/13030477/image-dog-person-skyFree Image from public domain licenseSouthington, Connecticut. The Southington News. Sourced from the Library of Congress. https://www.rawpixel.com/image/12298202/photo-image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: Southington, Connecticut. The Beaton and Corbin manufacturing company]. Sourced from… https://www.rawpixel.com/image/12297015/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: At the cotton gin. Cotton gin and wagons. Hale County, Alabama]. Sourced from the… https://www.rawpixel.com/image/12265438/photo-image-person-horse-animalFree Image from public domain licensePart of the daily motorcade of drought refugees. The Montana-North Dakota state line. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267554/photo-image-person-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Cotton gin, Hale County, Alabama]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265410/photo-image-person-horse-skyFree Image from public domain license[Untitled photo, possibly related to: Woman who asks for alms in the streets of San Juan, Puerto Rico]. Sourced from the… https://www.rawpixel.com/image/12263721/photo-image-person-road-public-domainFree Image from public domain licenseWagonload of cotton near the gin. Vicinity of Moundville, Alabama. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265305/photo-image-cow-plant-personFree Image from public domain licenseStreet in slum area known as "El Machuelitto," in Ponce, Puerto Rico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12263710/photo-image-face-hand-personFree Image from public domain license[Untitled photo, possibly related to: Boys playing on a street corner in Charlotte Amalie, Virgin Islands]. Sourced from the… https://www.rawpixel.com/image/12264226/photo-image-people-shirt-roadFree Image from public domain licenseStreet scene in Barranquitas, Puerto Rico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12264350/photo-image-person-road-public-domainFree Image from public domain licenseAt the cotton gin. Cotton gin and wagons. Hale County, Alabama. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265260/photo-image-person-horse-animalFree Image from public domain license[Untitled photo, possibly related to: Closeup of riverboat house, Charleston, West Virginia]. Sourced from the Library of… https://www.rawpixel.com/image/12266360/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Woman who asks for alms in the streets of San Juan, Puerto Rico]. Sourced from the… https://www.rawpixel.com/image/12263866/photo-image-person-book-roadFree Image from public domain licenseStreet scene in the tobacco town of Barranquitas, Puerto Rico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12264346/photo-image-person-road-public-domainFree Image from public domain licenseGreene County, Georgia. Farmer and his family. Sourced from the Library of Congress. https://www.rawpixel.com/image/12263720/photo-image-face-person-public-domainFree Image from public domain licenseGreensboro (vicinity), Greene County, Georgia. Boyd Jones playing ball during the recess period at a school. Sourced from… https://www.rawpixel.com/image/12263717/photo-image-face-hand-personFree Image from public domain license[Untitled photo, possibly related to: Flood refugee encampment at Forrest City, Arkansas]. Sourced from the Library of… https://www.rawpixel.com/image/12265253/photo-image-person-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Greene County, Georgia. Farmer and his family]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12262852/photo-image-face-person-public-domainFree Image from public domain licenseThe family of Russell Tombs moving out of their home which is in the area being taken over by the army in Caroline County… https://www.rawpixel.com/image/12263484/photo-image-person-wood-public-domainFree Image from public domain license[Untitled photo, possibly related to: Woman who asks for alms in the streets of San Juan, Puerto Rico]. Sourced from the… https://www.rawpixel.com/image/12262736/photo-image-person-road-public-domainFree Image from public domain license[Untitled photo, possibly related to: Garage, mining town, Davey, West Virginia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12264993/photo-image-person-road-public-domainFree Image from public domain license[Untitled photo, possibly related to: Payday, coal mining town, Omar, West Virginia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265314/photo-image-people-public-domain-manFree Image from public domain license[Untitled photo, possibly related to: Charlotte Amalie, St. Thomas Island, Virgin Islands. A side street]. Sourced from the… https://www.rawpixel.com/image/12263976/photo-image-face-shadow-handFree Image from public domain license