The Connecticut River at Bellows Falls, Vermont. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277528/photo-image-cloud-person-skyFree Image from public domain licenseBellows Falls, Vermont, and on the far side of the river, North Walpole, New Hampshire. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278445/photo-image-plant-person-skyFree Image from public domain licenseGlenfinnan Viaduct railway in Inverness-shire, Scotland https://www.rawpixel.com/image/1077830/glenfinnan-viaduct-scotlandView license[Untitled photo, possibly related to: Bingham Canyon, Utah. Huge dipper of a shovel loading ore into cars at a mine of the… https://www.rawpixel.com/image/12295762/photo-image-person-sky-public-domainFree Image from public domain licenseGallipolis, Ohio. Relationship of roller dam to lock. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294724/photo-image-sky-public-domain-archFree Image from public domain license[Untitled photo, possibly related to: New York, New York. The Bowery about 10 p.m.]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12289920/photo-image-person-light-roadFree 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[Untitled photo, possibly related to: Loading dock of flour mill. Port of Houston, Texas] by Russell Lee https://www.rawpixel.com/image/12174702/image-art-sky-vintageFree 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 licenseOne of the employees' entrances on Canal Street of the Amoskeag mills. Manchester, New Hampshire. Sourced from the Library… https://www.rawpixel.com/image/12269058/photo-image-road-public-domain-factoryFree Image from public domain licensePoint Pleasant (vicinity), West Virginia. Bridges over the Kanawha River. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293639/photo-image-plant-sky-treeFree Image from public domain licenseFreight cars in flour mill district. Minneapolis, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12282567/photo-image-cloud-person-skyFree Image from public domain license[Untitled photo, possibly related to: Construction of new bridge, Tygart Valley Homesteads, West Virginia]. Sourced from the… https://www.rawpixel.com/image/12247895/photo-image-person-sky-treeFree Image from public domain licenseA dredge working on the Ohio river at Rochester, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278809/photo-image-sky-smoke-public-domainFree Image from public domain licenseRailroad trestle. Ontonagon County, Michigan. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286510/photo-image-plant-sky-public-domainFree Image from public domain licenseLooking north. Monongahela River, Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273725/photo-image-sky-public-domain-natureFree Image from public domain licenseAmoskeag mills looking north from Bridge Street on Canal Street side. Manchester, New Hampshire. Sourced from the Library of… https://www.rawpixel.com/image/12269295/photo-image-plant-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: The remains of an old cotton mill at Scull Shoals. Greene County, Georgia]. Sourced… https://www.rawpixel.com/image/12279334/photo-image-plant-forest-treeFree Image from public domain licenseOswego, New York. Factories on the Oswego River. Sourced from the Library of Congress. https://www.rawpixel.com/image/12296098/photo-image-plant-sky-treeFree 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 licenseHouses of Bethlehem, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266366/photo-image-person-road-public-domainFree Image from public domain licenseFlagstaff, Arizona. A street scene on the Atchison, Topeka, and Santa Fe Railroad between Winslow and Seligman, Arizona.… https://www.rawpixel.com/image/12292638/photo-image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: Trucks at Union Stockyards. Chicago, Illinois]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287081/photo-image-sky-light-public-domainFree Image from public domain licenseDam at Trap Pond. Delaware land use project. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273875/photo-image-plant-sky-treeFree Image from public domain licenseEntrance to Union Stockyards. Omaha, Nebraska. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269479/photo-image-road-public-domain-factoryFree Image from public domain license[Untitled photo, possibly related to: Great Northern grain elevator in Superior, Wisconsin. City of Duluth, Minnesota in… https://www.rawpixel.com/image/12285160/photo-image-background-sky-public-domainFree Image from public domain licenseBridge Lake Nature Beauty Reflection https://www.rawpixel.com/image/91509/free-photo-image-beauty-bridge-cloudView 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: Cincinnati (vicinity), Ohio. A bridge over the Ohio River, as seen from the towboat… https://www.rawpixel.com/image/12295269/photo-image-person-sky-public-domainFree Image from public domain licenseOswego, New York. United Nations heroes marching behind the boy scouts carrying flags in the United Nations week parade.… https://www.rawpixel.com/image/12294905/photo-image-person-sky-balloonFree Image from public domain licenseOswego, New York. Factories on the Oswego River. Sourced from the Library of Congress. https://www.rawpixel.com/image/12296112/photo-image-plant-sky-treeFree Image from public domain license[Untitled photo, possibly related to: The remains of an old cotton mill at Scull Shoals. Greene County, Georgia]. Sourced… https://www.rawpixel.com/image/12279209/photo-image-plant-forest-treeFree Image from public domain license[Untitled photo, possibly related to: Highway on the New Hampshire side of the Connecticut River leading to Brattleboro… https://www.rawpixel.com/image/12277342/photo-image-cloud-plant-skyFree 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 licenseHousing under Wisconsin Avenue viaduct. Milwaukee, Wisconsin. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267431/photo-image-tree-road-public-domainFree Image from public domain licenseLas Vegas, Nevada. Workmen, trucks, railroad boxcars, tool sheds, and many buildings during an early construction period of… https://www.rawpixel.com/image/12297885/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Coal mine tipple, Caples, West Virginia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12248189/photo-image-tree-road-mountainFree Image from public domain licenseBridge across Wabash River. Vincennes, Indiana. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273789/photo-image-person-sky-public-domainFree Image from public domain licenseView of city of Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272448/photo-image-sky-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Rock crusher at quarry. Tygart Valley, West Virginia]. Sourced from the Library of… https://www.rawpixel.com/image/12247893/photo-image-plant-sky-treeFree Image from public domain licenseDistributing pea vines on stack after they have been dropped by belt conveyor. Vinery at Sun Prairie, Wisconsin by Russell… https://www.rawpixel.com/image/12147566/image-person-art-skyFree Image from public domain license[Untitled photo, possibly related to: Gallipolis, Ohio. Roller dam showing how river barrier is raised or lowered]. Sourced… https://www.rawpixel.com/image/12293320/photo-image-sky-public-domain-archFree Image from public domain licenseAn Atchison, Topeka, and Santa Fe passenger train passing an eastbound freight train carrying stock. Steam at the head end… https://www.rawpixel.com/image/12290302/photo-image-steam-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: New York, New York. 94th Street station on the Third Avenue elevated railway at 8… https://www.rawpixel.com/image/12289691/photo-image-person-sky-roadFree 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 licenseGallipolis, Ohio. Attaching a line to the side of the lock as the front part of the tow goes through. Sourced from the… https://www.rawpixel.com/image/12296220/photo-image-person-sky-public-domainFree Image from public domain licenseBritish Tower Bridge Construction Concept https://www.rawpixel.com/image/14293/premium-photo-image-architecture-bridge-britainView licenseBarger being pulled through by winch, prior to picking up towline from tug. Erie Canal, New York. Sourced from the Library… https://www.rawpixel.com/image/12288346/photo-image-person-sky-public-domainFree Image from public domain licenseSibley, Missouri. Crossing the Missouri River along the route of the Atchison, Topeka, and Santa Fe Railroad between… https://www.rawpixel.com/image/12291468/photo-image-sky-public-domain-archFree Image from public domain license