Birkenhead Ferry, opposite Liverpool: dockside scene with men working near a crane. Engraving by J. Davies, 1831, after C.… https://www.rawpixel.com/image/13982050/image-cloud-person-artFree Image from public domain licenseInventions: various items including a fountain-pen, a pendulum, and a pantograph. Engraving by T. Jeffrys. https://www.rawpixel.com/image/14003237/image-paper-cartoon-personFree Image from public domain licenseExhibits the surface of a pair of barges showing the tracks for loading and unloading cars, also the movable bridges by… https://www.rawpixel.com/image/14277013/image-background-frames-personFree Image from public domain licenseGen'l view of Bridge (Aug. 1873.) [St. Louis, Missouri] by Boehl and Koenig https://www.rawpixel.com/image/14286861/genl-view-bridge-aug-1873-st-louis-missouri-boehl-and-koenigFree Image from public domain licenseGezicht op de Tower Bridge in Londen (1894 - 1900) by anonymous and anonymous https://www.rawpixel.com/image/13758838/gezicht-tower-bridge-londen-1894-1900-anonymous-and-anonymousFree Image from public domain license[Untitled photo, possibly related to: Ship going through drawbridge entering port of Corpus Christi, Texas] by Russell Lee https://www.rawpixel.com/image/12143684/image-person-art-skyFree Image from public domain licenseGebruik van een meetplank geïllustreerd (1690) by Sébastien Leclerc I and Jean Jombert https://www.rawpixel.com/image/13783472/image-paper-cartoon-personFree Image from public domain licenseParkway and Skyway, New York City to Long Island. Sourced from the Library of Congress. https://www.rawpixel.com/image/12247104/photo-image-person-sky-airplaneFree Image from public domain licenseTextiles: a silk weaving loom and a frame for silkworms. Engraving by A. Bell. https://www.rawpixel.com/image/13988184/textiles-silk-weaving-loom-and-frame-for-silkworms-engraving-bellFree Image from public domain licenseGate of the Hospital of the Knights of St. John of Jerusalem, Clerkenwell, London, surrounded by thatched domestic… https://www.rawpixel.com/image/13996741/image-cloud-cartoon-personFree Image from public domain licenseMenufia Canal, Egypt: reconstruction work to the first Aswan Dam: equipment for erecting new sluices. Photograph by F.… https://www.rawpixel.com/image/13997424/photo-image-tree-sky-public-domainFree Image from public domain licenseCivil engineering: elevations and sections of bridges. Engraving by J. Davis, 1820, after R. Tredgold. https://www.rawpixel.com/image/14005973/image-paper-cartoon-airplaneFree Image from public domain licenseBoschpoort te Maastricht (1857) by Alexander Schaepkens, Alexander Schaepkens and Simonau and Toovey https://www.rawpixel.com/image/13779672/image-paper-frame-artFree Image from public domain licenseMayence (Hesse-Darmstadt). Perspective du pont fixe, cote inacheve. by Hippolyte Jouvin https://www.rawpixel.com/image/14292929/photo-image-public-domain-arch-architectureFree Image from public domain licenseThe Drawbridge, plate 7 from Imaginary Prisons by Giovanni Battista Piranesi https://www.rawpixel.com/image/8986296/the-drawbridge-plate-from-imaginary-prisons-giovanni-battista-piranesiFree Image from public domain licenseSt. Stephen's Church and the Drawbridge by John Wheeley Gough Gutch https://www.rawpixel.com/image/14276049/st-stephens-church-and-the-drawbridge-john-wheeley-gough-gutchFree Image from public domain licenseTwo victims are simultaneously tortured on the rack. Woodcut. https://www.rawpixel.com/image/13984426/two-victims-are-simultaneously-tortured-the-rack-woodcutFree Image from public domain licenseHuis ter Lede (1727 - 1733) by Abraham Rademaker, Willem Barents and Antoni Schoonenburg https://www.rawpixel.com/image/13784912/image-dog-paper-cartoonFree Image from public domain licenseTurnbuch für die Söhne des Vaterlandes / von Chr. Fried. Guts Muths. Mit vier Kupfertafeln. https://www.rawpixel.com/image/14008040/image-paper-cartoon-personFree Image from public domain licenseSluis op de plantage Palmeniribo te Suriname (1708) by Dirk Valkenburg https://www.rawpixel.com/image/13786750/sluis-plantage-palmeniribo-suriname-1708-dirk-valkenburgFree Image from public domain licenseArchitecture: two composite roof trusses. Engraving by E. Turrell, 1847. https://www.rawpixel.com/image/13972517/architecture-two-composite-roof-trusses-engraving-turrell-1847Free Image from public domain licenseSuspension Bridge to Clark Hill Islands and Burning Springs[.] On line of N.Y.C. & H.R.R.R. by George Barker https://www.rawpixel.com/image/14287291/photo-image-water-public-domain-nycFree Image from public domain licenseGezicht op de twee haven- of scheepskranen in het IJ te Amsterdam (1693 - 1694) by anonymous https://www.rawpixel.com/image/13777330/image-paper-person-artFree Image from public domain licenseArisbrug en Voorhaven in Edam (1902) by Wijnand Otto Jan Nieuwenkamp https://www.rawpixel.com/image/13761605/arisbrug-voorhaven-edam-1902-wijnand-otto-jan-nieuwenkampFree Image from public domain licenseSt. Stephen's Church, the Drawbridge, Bristol by John Wheeley Gough Gutch https://www.rawpixel.com/image/14312283/st-stephens-church-the-drawbridge-bristol-john-wheeley-gough-gutchFree Image from public domain licenseTrestle and crossing of the American River, near Sacramento, 5,145 feet long. by Eadweard J Muybridge https://www.rawpixel.com/image/14297756/photo-image-person-public-domain-houseFree Image from public domain licenseMenufia Canal, Egypt: reconstruction work to the first Aswan Dam: trollies bearing construction materials. Photograph by F.… https://www.rawpixel.com/image/13982939/photo-image-person-airplane-technologyFree Image from public domain licenseCases of mental disease, with practical observations on medical treatment. For the use of students / by Alexander Morison. https://www.rawpixel.com/image/13986069/image-paper-cartoon-faceFree Image from public domain licenseRuïne van de pelmolen te Gorinchem bij kanonnen (1814 - 1816) by Johannes van Hiltrop, Cornelis de Jonker and Teunis Horneer… https://www.rawpixel.com/image/13782329/image-paper-cloud-artFree Image from public domain licenseThe Grand Piazza, plate 4 from Imaginary Prisons by Giovanni Battista Piranesi https://www.rawpixel.com/image/9016001/the-grand-piazza-plate-from-imaginary-prisons-giovanni-battista-piranesiFree Image from public domain licenseWarrington - New Road Bridge over Mersey by G Herbert and Horace C Bayley https://www.rawpixel.com/image/14319047/warrington-new-road-bridge-over-mersey-herbert-and-horace-bayleyFree Image from public domain licenseCross-sections of a finery and furnace used in the processing of iron. Engraving by Wilson Lowry after J. Farey. https://www.rawpixel.com/image/13982004/image-paper-cross-patternFree Image from public domain licenseMachinery: a pile-driving hammer, mounted on existing piles, with two men operating it. Engraving after J. Besson. https://www.rawpixel.com/image/13998604/image-paper-cartoon-personFree Image from public domain licenseMenufia Canal, Egypt: reconstruction work to the first Aswan Dam: men at work lowering a metal lock gate into the dam.… https://www.rawpixel.com/image/13971962/photo-image-person-sky-waterFree Image from public domain licenseDe Nieuwe Teertuinen te Amsterdam (1870 - 1926) by Willem Wenckebach https://www.rawpixel.com/image/13788737/nieuwe-teertuinen-amsterdam-1870-1926-willem-wenckebachFree Image from public domain licenseCrossing the almost-dry river bed of the Canadian River along the Atchison, Topeka and Santa Fe Railroad. Sourced from the… https://www.rawpixel.com/image/12293316/photo-image-sky-road-public-domainFree Image from public domain license[Untitled photo, possibly related to: Drawbridge, Chicago, Illinois]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12261131/photo-image-person-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Drawbridge, Chicago, Illinois]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12259682/photo-image-person-smoke-roadFree Image from public domain license[Untitled photo, possibly related to: A dredge working on the Ohio river at Rochester, Pennsylvania]. Sourced from the… https://www.rawpixel.com/image/12277949/photo-image-sky-smoke-airplaneFree Image from public domain license[Untitled photo, possibly related to: Barger being pulled through by winch, prior to picking up towline from tug. Erie… https://www.rawpixel.com/image/12288619/photo-image-person-sky-public-domainFree Image from public domain licenseLog booms in Willamette River. Portland, Oregon. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266995/photo-image-cloud-booms-skyFree Image from public domain licenseCincinnati (vicinity), Ohio. Deckhands releasing a barge from the tow of the towboat Ernest T. Weir going down the Ohio… https://www.rawpixel.com/image/12296194/photo-image-person-sky-technologyFree Image from public domain license[Untitled photo, possibly related to: Lock Eleven. Erie Canal, New York]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288325/photo-image-person-sky-roadFree Image from public domain licenseBarge in Lock Eleven. Erie Canal, near Amsterdam, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288617/photo-image-person-sky-lightFree Image from public domain license[Untitled photo, possibly related to: Lock Eleven on the Erie Canal at Amsterdam, New York]. Sourced from the Library of… https://www.rawpixel.com/image/12288329/photo-image-person-sky-public-domainFree Image from public domain licenseThe dock at Little Creek, Virginia, the "Gateway to the South." The Norfolk end of the Norfolk-Cape Charles ferry. Sourced… https://www.rawpixel.com/image/12263286/photo-image-person-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Ship going through drawbridge entering port of Corpus Christi, Texas] by Russell Lee https://www.rawpixel.com/image/12166641/image-person-art-skyFree Image from public domain licenseLock Eleven. Erie Canal, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288464/photo-image-person-public-domain-archFree Image from public domain license[Untitled photo, possibly related to: The dock at Little Creek, Virginia, the "Gateway to the South." The Norfolk end of the… https://www.rawpixel.com/image/12263325/photo-image-person-public-domain-archFree Image from public domain license[Untitled photo, possibly related to: Drawbridge, Chicago, Illinois]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12259623/photo-image-person-sky-public-domainFree Image from public domain license