Pembroke Welsh Corgi standing on grass ground. Original public domain image from Flickr https://www.rawpixel.com/image/4024964/photo-image-plant-dog-grassFree Image from public domain licenseA great horned owl has asserted permanent visiting rights to a tree above the ranch headquarters at the Big Creek cattle… https://www.rawpixel.com/image/582740/carol-highsmiths-wyoming-photographFree Image from public domain licenseBall of coffee floats aboard Challenger on 25 June 2009. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440764/free-photo-image-coffee-spacelab-public-domainFree Image from public domain licenseThe barren Nevada desert near Las Vegas. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434017/free-photo-image-desert-mountain-photography-landscapeFree Image from public domain licenseBattery Park View, New York. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/433846/free-photo-image-travel-world-new-york-park-bayFree Image from public domain licensePunch Pot (1760), vintage object. Original public domain image from The MET Museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/11066699/photo-image-plant-art-patternFree Image from public domain licenseOne of the smallest apprentices I found in School Factory. Work being slack. Tampa, Fla, January 1909. Photographer: Hine… https://www.rawpixel.com/image/8769987/photo-image-vintage-people-kidFree Image from public domain licenseJoseph O'Conner, a 12 year old truent, selling extras during school hours, April 1912. Photographer: Hine, Lewis. Original… https://www.rawpixel.com/image/8765736/photo-image-vintage-newspaper-portraitFree Image from public domain licenseIn the Pumpkin Field at Lewes (The Photographer's Wife, his Daughter, and Friends) https://www.rawpixel.com/image/9066836/photo-image-art-vintage-public-domainFree Image from public domain licenseAutumn harvest vegetables, squash, acorn, gourds. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3302602/free-photo-image-thanksgiving-moon-public-domain-bananaFree Image from public domain licenseIndoor botanical center. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… https://www.rawpixel.com/image/3090893/free-photo-image-tropical-garden-centerFree Image from public domain licenseVictorian mansion in East Greenwich, Rhode Island. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/3090968/free-photo-image-mansion-house-victorian-americaFree Image from public domain licenseGolden Mantella (2013) by Smithsonian Institution. Original from Smithsonian's National Zoo. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/3060038/free-photo-image-frog-amazing-animalFree Image from public domain licenseRaccoon, Procyon lotor, a vector in the transmission of rabies to humans and other animals. Original image sourced from US… https://www.rawpixel.com/image/2288474/free-photo-image-raccoon-vector-animalFree Image from public domain licenseOminous clouds above Pine Bluffs, a small farming community on the Nebraska border in Laramie County, Wyoming. Original… https://www.rawpixel.com/image/582780/carol-highsmiths-wyoming-photographFree Image from public domain licenseWith landing gear down, space shuttle Endeavour nears touchdown on Runway 15 at the Shuttle Landing Facility at NASA's… https://www.rawpixel.com/image/441379/free-photo-image-space-shuttle-aircraft-carrierFree Image from public domain licenseLegionnaire falls after picnic bench breaks at American Legion fish fry, Oldham County, Post 39, near Louisville, Kentucky… https://www.rawpixel.com/image/12109068/image-plant-people-grassFree Image from public domain license[Untitled photo, possibly related to: A Democrat wagon on William Walling farm near Anthon, Iowa] by Russell Lee https://www.rawpixel.com/image/12108221/image-plant-grass-artFree Image from public domain licenseA doffer boy. Salisbury, N.C., December 1908. Photographer: Hine, Lewis. Original public domain image from Flickr https://www.rawpixel.com/image/8765719/photo-image-vintage-kidFree Image from public domain licenseA Polish boy, Willie, who was taking his noon rest in a doffer box. Anthony, R.I, April 1909. Photographer: Hine, Lewis.… https://www.rawpixel.com/image/8765910/photo-image-face-vintage-kidFree Image from public domain licensePhotograph of William Lerch, 7 year old news-boy who sells for his brother, April 1912. Photographer: Hine, Lewis. Original… https://www.rawpixel.com/image/8765734/photo-image-vintage-newspaper-portraitFree Image from public domain licensePhotograph of Louis Gabriel (13 years old) and brother Eddie (10 years old) and Johnnie (7 years old), April 1912.… https://www.rawpixel.com/image/8765829/photo-image-paper-vintage-kidFree Image from public domain licenseFree playing guitar image, public domain musical instrument CC0 photo. https://www.rawpixel.com/image/5906285/photo-image-public-domain-wooden-living-roomFree Image from public domain licenseFree Border Collie running, holding toy image, public domain dog CC0 photo. https://www.rawpixel.com/image/5912599/photo-image-background-public-domain-dogFree Image from public domain licenseSpring Break by Jim Sinclair/USFWS, Tamarac National Wildlife Refuge Photo Contest 2013Original public domain image from… https://www.rawpixel.com/image/4029099/photo-image-tree-ocean-plantFree Image from public domain licenseMeerkat yawning wide open mouth in black and white. Original public domain image from Flickr https://www.rawpixel.com/image/3583253/free-photo-image-cat-animalFree Image from public domain licenseThe famous Giant Gap run of the even more famous North Fork of the American River is one of the most challenging runs in… https://www.rawpixel.com/image/3398359/free-photo-image-abies-beauty-blossomFree Image from public domain licenseWant to camp at Joshua Tree National Park but don’t have a reservation? https://www.rawpixel.com/image/3398124/free-photo-image-adventure-california-campFree Image from public domain licenseCarrizo Plain National Monument is one of the best kept secrets in California. https://www.rawpixel.com/image/3397993/free-photo-image-animal-calf-californiaFree Image from public domain licenseMedical personnel pose with a Papua New Guinea military member kneeling in the entrance of a dugout. [Personnel][Foreign… https://www.rawpixel.com/image/3400393/free-image-world-war-alt-collection-apparelFree Image from public domain licenseBiscuit with hot chocolate on a table. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282910/free-photo-image-chocolate-beverage-bisquitFree Image from public domain licenseEmergency hospital wards during Influenza Epidemic (1918). Original image from National Museum of Health and Medicine.… https://www.rawpixel.com/image/2298610/free-photo-image-pandemic-plague-influenzaFree Image from public domain licenseAn example of acute necrotizing ulcerative gingivitis, also known as trench mouth. Original image sourced from US Government… https://www.rawpixel.com/image/2288464/free-photo-image-teeth-mouth-gingivitisFree Image from public domain licenseA woman receiving a dose of the investigational NIAID/GlaxoSmithKline (GSK) Ebola vaccine. Original image sourced from US… https://www.rawpixel.com/image/2288503/free-photo-image-vaccine-covid-injectionFree Image from public domain licenseThe Helios Prototype is an enlarged version of the Centurion flying wing, which flew a series of test flights at Dryden in… https://www.rawpixel.com/image/441531/free-photo-image-solar-powered-aircraft-nasa-engineFree Image from public domain licenseNASA F-15B #836 in flight with Quiet Spike attached, September 27th, 2006. Original from NASA. Digitally enhanced by… https://www.rawpixel.com/image/440721/free-photo-image-soldier-air-force-aircraftFree Image from public domain licenseChimpanzee at the North Carolina Zoological Park in Asheboro, North Carolina. Original image from Carol M. Highsmith’s… https://www.rawpixel.com/image/422096/free-photo-image-monkey-public-domain-chimpFree Image from public domain licenseATK Solar Array Deployment Test at NASA Plum Brook Station Space Power Facility. Original from NASA. Digitally enhanced by… https://www.rawpixel.com/image/418590/atk-solar-array-deployment-testFree Image from public domain licenseSaint Mary (the Blessed Virgin) with the Christ Child, Saint Catherine of Alexandria, Saint John the Baptist and Saint… https://www.rawpixel.com/image/13994868/image-angel-face-christFree Image from public domain licensePiccadilly. St. James Park on right. From: World War I photograph album (1919) by Herbert Green. https://www.rawpixel.com/image/13028899/image-person-baseball-treeFree Image from public domain licenseFamily and friends - November 1939 (November 1939) by Leslie Adkin. https://www.rawpixel.com/image/13027963/family-and-friends-november-1939-november-1939-leslie-adkinFree Image from public domain license[Untitled photo, possibly related to: Sun bathers at the park swimming pool, Caldwell, Idaho] by Russell Lee https://www.rawpixel.com/image/12173269/image-face-plant-peopleFree Image from public domain licenseFarm woman using songbook as sunshade during dinner at all day community sing, Pie Town, New Mexico by Russell Lee https://www.rawpixel.com/image/12108862/image-face-plant-handFree Image from public domain licenseElectric welding, an essential part of oil field activities, Seminole, Oklahoma by Russell Lee https://www.rawpixel.com/image/12109247/image-person-art-vintageFree Image from public domain licenseChildren swinging on maypole, La Forge, Missouri. Project school at Southeast Missouri Farms by Russell Lee https://www.rawpixel.com/image/12108384/image-face-people-artFree Image from public domain licenseInterior of cooperative garment factory at Jersey Homesteads, showing some of the eighty homesteaders at their work and some… https://www.rawpixel.com/image/12108048/image-people-art-vintageFree Image from public domain license[Untitled photo, possibly related to: Front porch of sharecropper cabin, Southeast Missouri Farms] by Russell Lee https://www.rawpixel.com/image/12107692/image-art-sky-vintageFree Image from public domain licenseLaundry service, washing machine. View public domain image source here https://www.rawpixel.com/image/8809205/photo-image-public-domain-photography-trainFree Image from public domain licenseHamilton Watch. Turret head operation - semi-skilled machine operation by which drilling, counter-sinking, facing and… https://www.rawpixel.com/image/8769970/photo-image-face-vintage-womanFree Image from public domain licenseJoseph Bernstein, a ten year old news-boy who had been selling in saloons along the way, said he makes a dollar a day… https://www.rawpixel.com/image/8765830/photo-image-vintage-kidFree Image from public domain licenseMany youngsters here. Some boys and girls were so small they had to climb up on to the spinning frame to mend broken threads… https://www.rawpixel.com/image/8765916/photo-image-vintage-kidFree Image from public domain licenseWarwick Castle, Warwick, England. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7653668/photo-image-vintage-art-public-domainFree Image from public domain license