World's largest open pit iron mine at Hibbing, Minnesota. The pit is two and a half miles long, three quarters of a mile… https://www.rawpixel.com/image/12286324/photo-image-cloud-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: A diesel freight train on the Atchison, Topeka and Santa Fe Railroad between Winslow… https://www.rawpixel.com/image/12292949/photo-image-cloud-plant-skyFree Image from public domain licenseFeet of a farmer. Greene County, Georgia. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277225/photo-image-person-horse-animalFree Image from public domain licenseGiant wheels ten feet in diameter, once used for carrying logs to sawmill, Michigan. Sourced from the Library of Congress. https://www.rawpixel.com/image/12258296/photo-image-plant-person-grassFree Image from public domain license[Untitled photo, possibly related to: Flushing High School, Queens, New York, New York. Scaling an eight foot obstacle at… https://www.rawpixel.com/image/12294343/photo-image-shadow-people-public-domainFree Image from public domain licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. A ship fitter at work. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293954/photo-image-shadow-hand-personFree Image from public domain licenseLas Vegas, Nevada. Peat storage building, 540 by 100 feet, a part of the Basic Magnesium Incorporated plant in the southern… https://www.rawpixel.com/image/12297649/photo-image-plant-person-skyFree Image from public domain licenseRammed earth construction near Birmingham, Alabama. A depth of eleven inches is adequate for footings in the Gulf and South… https://www.rawpixel.com/image/12299604/image-frame-plant-forestFree Image from public domain licenseDetail of winter quarters of Frank Lloyd Wright's architectual group. Materials used in these buildings are native stone… https://www.rawpixel.com/image/12149837/image-cloud-person-artFree Image from public domain license[Untitled photo, possibly related to: Summit, California. The brakeman opening the retainer valve on a car on the Atchison… https://www.rawpixel.com/image/12294133/photo-image-person-mountain-public-domainFree Image from public domain licenseWashington, D.C. Reverend Foot greeting members of his congregation after services at the First Wesleyan Methodist church.… https://www.rawpixel.com/image/12294580/photo-image-face-people-public-domainFree Image from public domain licenseDiesel freight train on the Atchison, Topeka and Santa Fe Railroad between Winslow and Seligman, Arizona going down the… https://www.rawpixel.com/image/12292654/photo-image-cloud-plant-skyFree Image from public domain license[Untitled photo, possibly related to: Las Vegas, Nevada. Giant silos, eighty-four feet high, for the storage of ore for the… https://www.rawpixel.com/image/12297859/photo-image-plant-person-airplaneFree Image from public domain licensePrecast concrete flume on "C" Canal in Oregon. Length, 4300 feet; capacity 345 second-feet. September, 1941. Sourced from… https://www.rawpixel.com/image/12237065/image-sky-road-animalFree Image from public domain license[Untitled photo, possibly related to: Silverton, Colorado lies in a valley at 9400 feet elevation. This has been a center… https://www.rawpixel.com/image/12149069/image-cloud-art-skyFree Image from public domain licenseSan Bernardino, California. A Pennsylvania Railroad freight car, built in June 1929, showing the exterior width, the… https://www.rawpixel.com/image/12292989/photo-image-public-domain-interior-architectureFree Image from public domain license[Untitled photo, possibly related to: Washington, D.C. Reverend Foot greeting members of his congregation after services at… https://www.rawpixel.com/image/12294525/photo-image-people-public-domain-womanFree Image from public domain licenseRavalli County, Montana. New lamb a few minutes after birth, trying to get on its feet. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286798/photo-image-dog-grass-animalFree Image from public domain licenseFiremen's muster. Boothbay center, Maine. Measuring the farthest drop of water on building paper which is unrolled fresh for… https://www.rawpixel.com/image/12270035/photo-image-paper-plant-personFree Image from public domain licenseWater pump and tractor power plant, a common sight in the rice area in Arkansas. In some places in the state, the pumps go… https://www.rawpixel.com/image/12268661/photo-image-plant-person-skyFree Image from public domain licenseLas Vegas, Nevada. Painters at work seventy feet above ground on the gigantic construction of the Basic Magnesium… https://www.rawpixel.com/image/12297609/photo-image-plant-person-public-domainFree Image from public domain licenseMetal casing threaded into cement cap ten feet down. Charles County, Maryland. Hardesty well project. Sourced from the… https://www.rawpixel.com/image/12287236/photo-image-pattern-public-domain-blackFree Image from public domain license[Untitled photo, possibly related to: Las Vegas, Nevada. Painters at work seventy feet above ground on the gigantic… https://www.rawpixel.com/image/12297911/photo-image-background-plant-personFree Image from public domain licenseLas Vegas, Nevada. Two peat storage buildings, 540 by 100 feet, on the Basic Magnesium Incorporated grounds in the southern… https://www.rawpixel.com/image/12297627/photo-image-sky-road-public-domainFree Image from public domain licenseDetail of winter quarters of Frank Lloyd Wright. Foot of McDowell Mountain, Maricopa County, Arizona by Russell Lee https://www.rawpixel.com/image/12150895/image-art-sky-vintageFree Image from public domain licenseBelen, New Mexico. Going across the Rio Grande River Valley on the Atchison, Topeka and Santa Fe Railroad between Vaughn and… https://www.rawpixel.com/image/12292552/photo-image-sky-road-public-domainFree Image from public domain licenseLas Vegas, Nevada. Painters at work seventy feet above ground on the gigantic construction of the Basic Magnesium… https://www.rawpixel.com/image/12297917/photo-image-plant-person-skyFree Image from public domain licenseA diesel freight train on the Atchison, Topeka and Santa Fe Railroad between Winslow and Seligman, Arizona going down the… https://www.rawpixel.com/image/12292963/photo-image-plant-person-skyFree Image from public domain licenseMiner using telephone at 500-foot level at gold mine. Mogollon, New Mexico by Russell Lee https://www.rawpixel.com/image/12173062/image-person-art-vintageFree Image from public domain licenseLas Vegas, Nevada. Giant silos, eighty-four feet high, for the storage of ore for the manufacture of magnesium, on the… https://www.rawpixel.com/image/12297385/photo-image-public-domain-factory-architectureFree Image from public domain licenseSummit, California. The brakeman opening the retainer valve on a car on the Atchison, Topeka and Santa Fe Railroad between… https://www.rawpixel.com/image/12294103/photo-image-person-sky-roadFree Image from public domain licenseLas Vegas, Nevada. A billboard on the grounds of the gigantic plant of Basic Magnesium Incorporated, showing tracer bullets… https://www.rawpixel.com/image/12299924/image-background-plant-personFree Image from public domain licenseLas Vegas, Nevada. A rear view of some of the structures of the Basic Magnesium Incorporated plant, showing at the far right… https://www.rawpixel.com/image/12297894/photo-image-shadow-plant-skyFree Image from public domain license[Untitled photo, possibly related to: Hay barn on farm at foot of Wasatch Mountains. Box Elder County, Utah] by Russell Lee https://www.rawpixel.com/image/12150249/image-plant-art-skyFree Image from public domain licenseColumbia Steel Company at Geneva, Utah. Footings for open hearth furnaces for a new steel plant under construction which… https://www.rawpixel.com/image/12297948/photo-image-plant-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Feet of a farm woman, who together with two children runs a rented farm. Near… https://www.rawpixel.com/image/12277255/photo-image-face-shadow-personFree Image from public domain license[Untitled photo, possibly related to: Feet of a farm woman, who together with two children runs a rented farm. Near… https://www.rawpixel.com/image/12278985/photo-image-face-shadow-personFree Image from public domain license[Untitled photo, possibly related to: Las Vegas, Nevada. Giant silos, eighty-four feet high, for the storage of ore for the… https://www.rawpixel.com/image/12298151/photo-image-plant-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Diesel freight train on the Atchison, Topeka and Santa Fe Railroad between Winslow and… https://www.rawpixel.com/image/12292649/photo-image-cloud-sky-woodFree Image from public domain licenseMale Nude Standing, Separ (1858) by Daniel Huntington. Original from The Smithsonian. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2478560/free-illustration-image-foot-vintageFree Image from public domain license