Pennybacker Bridge in Austin, Texas, United States https://www.rawpixel.com/image/426920/free-photo-image-infrastructure-austin-hill-countryView licenseConstruction work in front of Bridewell prison and the jail governors house, Edinburgh, Scotland. Steel engraving by W.… https://www.rawpixel.com/image/13981128/image-dog-cartoon-personFree Image from public domain licensePlate XXXI. Cantilevers Complete. 9th July, 1889. by John Fergus and Photophane Co https://www.rawpixel.com/image/14313063/image-water-public-domain-landscapeFree Image from public domain licenseBridge architecture cityscape building. AI generated Image by rawpixel. https://www.rawpixel.com/image/12012140/image-background-border-pngView licenseBridge brooklyn bridge architecture tranquility. AI generated Image by rawpixel. https://www.rawpixel.com/image/12012144/image-background-cloud-borderView licenseSubstitute materials. Timber connectors. Use of wood in the construction of Army chapels is shown here, one of 570 similar… https://www.rawpixel.com/image/12307677/image-person-wood-factoryFree Image from public domain licenseThe Sydney Harbour Bridge is a steel through arch bridge across Sydney Harbour that carries rail, vehicular, bicycle, and… https://www.rawpixel.com/image/4023399/photo-image-water-city-buildingFree Image from public domain license[Untitled photo, possibly related to: Parkway and Skyway, New York City to Long Island]. Sourced from the Library of… https://www.rawpixel.com/image/12247403/photo-image-person-sky-roadFree Image from public domain licenseIron: various machines involved in the Bessemer process of steel manufacture. Engraving c.1861. https://www.rawpixel.com/image/13975535/image-cartoon-person-public-domainFree Image from public domain licenseA large undercover market in Newcastle-upon-Tyne with stalls selling fruit and vegetables. Steel engraving by W. Collard… https://www.rawpixel.com/image/14006215/image-person-art-public-domainFree Image from public domain licenseGezicht op het interieur van de grote zaal van het Kurhaus in Wiesbaden (1811 - 1848) by Ernst Grünewald, H Bosse and C G… https://www.rawpixel.com/image/13778443/image-paper-person-artFree Image from public domain licensePharmaceutical bill-head for the Pharmacie Centrale de France showing personifications of commerce (left) and pharmacy… https://www.rawpixel.com/image/14002400/image-paper-cartoon-personFree Image from public domain licenseEngineering: diagrams of loading for simple and composite wooden beams. Engraving by J. Davis after R. Tredgold, 1820. https://www.rawpixel.com/image/13986370/image-paper-cartoon-patternFree Image from public domain licenseNew steel bridge over the Nile at 'Boulac', Cairo. From the album: Photograph album of Major J.M. Rose, 1st NZEF (1914… https://www.rawpixel.com/image/13029723/image-rose-person-treeFree Image from public domain licenseSt. John's Hospital and Chapel, Exeter: front with street life. Line engraving by W. Deeble, 1830, after A. Glennie. https://www.rawpixel.com/image/13980407/image-dog-paper-horseFree Image from public domain licenseUnloading iron ore from freight cars. Bethlehem steel mill. Sparrows Point, Maryland. Sourced from the Library of Congress. https://www.rawpixel.com/image/12335763/image-person-public-domain-babyFree Image from public domain licenseThe Palace of Art and Industry, exhibition of 1862: the interior, at the crossing, looking west. Wood engraving by W. E.… https://www.rawpixel.com/image/14013131/image-person-church-artFree Image from public domain licenseTourists getting aboard the "Steel Pier" on their return trip to Boston. During the season two boats arrive daily at two… https://www.rawpixel.com/image/12318202/image-person-public-domain-womanFree Image from public domain licenseLeamington Spa, Warwickshire: pump room and Vicarage/Priory bridge. Steel engraving, 1851. https://www.rawpixel.com/image/14009679/image-paper-plant-personFree Image from public domain license[Untitled photo, possibly related to: Parkway and Skyway, New York City to Long Island]. Sourced from the Library of… https://www.rawpixel.com/image/12246315/photo-image-sky-road-public-domainFree Image from public domain licenseCrucible steel company. Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287029/photo-image-cloud-sky-public-domainFree Image from public domain licenseSteel plant on the Ohio River. Aliquippa, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272457/photo-image-plant-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Freight train operations on the Chicago and Northwestern Railroad between Chicago and… https://www.rawpixel.com/image/12291204/photo-image-sky-tree-crossesFree Image from public domain licenseLas Vegas, Nevada. Some completed and also some unfinished buildings of the Basic Magnesium Incorporated plant. The building… https://www.rawpixel.com/image/12297653/photo-image-plant-sky-public-domainFree Image from public domain license