A group of people riding horses through dry wilderness towards a mountain range. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3289037/free-photo-image-animal-cc0-creative-commonsFree Image from public domain licenseThe Rapids. - In the Dalles of the St. Louis River. by Caswell and Davy https://www.rawpixel.com/image/14290801/the-rapids-the-dalles-the-st-louis-river-caswell-and-davyFree Image from public domain licenseEast, Above the Clouds, (Glen Stable). [Mt. Washington, N.H.] by Clough and Kimball https://www.rawpixel.com/image/14290558/photo-image-clouds-public-domain-natureFree Image from public domain licenseView of a French park, statue and large building in background https://www.rawpixel.com/image/14303855/view-french-park-statue-and-large-building-backgroundFree Image from public domain licenseNorthern WalkingstickPhoto by Grayson Smith/USFWS. Original public domain image from Flickr https://www.rawpixel.com/image/4029139/photo-image-plant-nature-foodFree Image from public domain licenseKarnak, View through the Hypostyle Room by Théodule Devéria https://www.rawpixel.com/image/14326790/karnak-view-through-the-hypostyle-room-theodule-deveriaFree Image from public domain licenseCaptains of the Canon, Canon de Chelley, Arizona by John K Hillers https://www.rawpixel.com/image/14272504/captains-the-canon-canon-chelley-arizona-john-hillersFree Image from public domain licenseFree clear ocean water with people swimming photo, public domain nature CC0 image. https://www.rawpixel.com/image/5901905/photo-image-public-domain-blue-oceanFree Image from public domain licenseA female superb warbler sitting on a branch of a tree. Etching by P. Mazell. https://www.rawpixel.com/image/13973954/female-superb-warbler-sitting-branch-tree-etching-mazellFree Image from public domain licenseDromaius novaehollandiae (Emu) (1770 - 1780) by George Raper https://www.rawpixel.com/image/13738825/dromaius-novaehollandiae-emu-1770-1780-george-raperFree Image from public domain licenseView in the high country, on the headwaters of the Dirty Devil River. The rocks in the foreground are… https://www.rawpixel.com/image/14288363/photo-image-art-mountain-public-domainFree Image from public domain licenseSpring in the La Sals. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298102/free-photo-image-sunlight-sky-road-sunset-buildingFree Image from public domain licenseView of train trestle, Knoxville, Tennessee by McCrary and Branson https://www.rawpixel.com/image/14297383/view-train-trestle-knoxville-tennessee-mccrary-and-bransonFree Image from public domain licenseVictoria Manganese Mines. Mackhamville, N.B. View of Washing Sheds, Caprenter's Shop, Drying & Packing Shed, etc. by John S… https://www.rawpixel.com/image/14290076/photo-image-horse-people-woodFree Image from public domain licensePohono, the Bridal Veil, from the Black Spring, Yosemite. by Carleton Watkins https://www.rawpixel.com/image/14300612/pohono-the-bridal-veil-from-the-black-spring-yosemite-carleton-watkinsFree Image from public domain licenseIsère River, Mont Saint-Eynard, Dent de Crolles as seen from Grenoble, France by V Muzet https://www.rawpixel.com/image/14283976/photo-image-smoke-water-mountainFree Image from public domain licenseConduit pipes and a machine for boring pipes. Etching by T. Jefferys. https://www.rawpixel.com/image/13982737/conduit-pipes-and-machine-for-boring-pipes-etching-jefferysFree Image from public domain licenseTrenton Falls, from foot of stairs, New York. by Edward Bierstadt https://www.rawpixel.com/image/14287822/trenton-falls-from-foot-stairs-new-york-edward-bierstadtFree Image from public domain licenseSugar Loaf, Farallone [sic] Islands, Pacific Ocean. by Carleton Watkins https://www.rawpixel.com/image/14299578/sugar-loaf-farallone-sic-islands-pacific-ocean-carleton-watkinsFree Image from public domain licensePine grosbeak pairA pair of pine grosbeaks foraging in the snow under a bird feeder.Photo by Courtney Celley/USFWS. Original… https://www.rawpixel.com/image/4028261/photo-image-bird-nature-2021Free Image from public domain licenseZoological Society of London: A harpy eagle and a white-headed sea eagle. Coloured etching by Simpkins after H. Smith. https://www.rawpixel.com/image/13964567/image-art-sea-animalFree Image from public domain licenseSteam rising up above a cold grassy field surrounded by rocky hills in Iceland. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3291155/free-photo-image-bog-cc0-countrysideFree Image from public domain licenseLong view of house at Silverspring, New Jersey, with family on front porch https://www.rawpixel.com/image/14307493/long-view-house-silverspring-new-jersey-with-family-front-porchFree Image from public domain licensePerson on Fanatic Windsurfer in ocean, location unknown, August 19, 2014. View public domain image source here https://www.rawpixel.com/image/6112843/photo-image-public-domain-ocean-natureFree Image from public domain licenseView from Indian Fall, Looking Down the Stream. by Edward Anthony https://www.rawpixel.com/image/14285530/view-from-indian-fall-looking-down-the-stream-edward-anthonyFree Image from public domain licenseWalk to the Basin, Fairmount Park, Philadelphia, Pa. by James Cremer https://www.rawpixel.com/image/14290697/walk-the-basin-fairmount-park-philadelphia-pa-james-cremerFree Image from public domain licenseViews in the Tunnel After the Break. [Minnesota] by William H Jacoby https://www.rawpixel.com/image/14291626/views-the-tunnel-after-the-break-minnesota-william-jacobyFree Image from public domain licenseGlen Canyon Dam. Photographer: Eiler, Lyntha Scott. Original public domain image from Flickr https://www.rawpixel.com/image/8800135/photo-image-public-domain-ocean-natureFree Image from public domain licenseTen flies (Pullata species). Coloured etching by M. Harris, 1779. https://www.rawpixel.com/image/14009909/ten-flies-pullata-species-coloured-etching-harris-1779Free Image from public domain licenseView from the Calistoga Hotel, Sonoma Co., Cal. (#1590) by Carleton Watkins https://www.rawpixel.com/image/14311303/view-from-the-calistoga-hotel-sonoma-co-cal-1590-carleton-watkinsFree Image from public domain licenseMountain during sunset. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305300/free-photo-image-cc0-countryside-creative-commonsFree Image from public domain license