St. Louis Red Cross Motor Corps on duty during influenza epidemic (1918). Original from Library of Congress. Digitally… https://www.rawpixel.com/image/2301122/free-photo-image-vintage-spanish-flu-womanFree Image from public domain licenseMackenzie Bay, Antarctica and the ice shelf on February 12, 2012., Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440206/mackenzie-bay-antarctica-space-viewFree Image from public domain licenseFlorence - Ancient and Modern Gallery (1907–1915), by Michelangelo Buonarroti. Original public domain image from… https://www.rawpixel.com/image/9407258/photo-image-art-vintage-public-domainFree Image from public domain licenseAmerican Red Cross canteen workers taking food for family infected with the flu, Charlotte, North Carolina (1918). Original… https://www.rawpixel.com/image/2301114/free-photo-image-vintage-virus-foodFree Image from public domain licenseWalter Reed Hospital flu ward (ca. 1910–1920). Original from Library of Congress. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2301131/free-photo-image-spanish-flu-nurse-1918Free Image from public domain licenseThe Mackenzie River in the Northwest Territories, Canada. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/439973/map-green-terrain-canadaFree Image from public domain licenseHeilongjiang, a province of China located in the northeastern part of the country. Original from NASA. Digitally enhanced by… https://www.rawpixel.com/image/440587/heilongjiang-province-space-viewFree Image from public domain licenseA bronze replica, one-fifth the size of the Statue of Liberty, commissioned by Frank Park Samford as the symbol for the… https://www.rawpixel.com/image/421695/statue-liberty-replicaFree Image from public domain licenseCat with a paw up to its closed eyes (1960–1979), vintage cat postcard by Tichnor Bros., Inc. Original public domain… https://www.rawpixel.com/image/9405810/photo-image-cat-art-vintage-illustrationFree Image from public domain licenseOn July 20, the U.S. Coast Guard Cutter Healy steamed south in the Arctic Ocean toward the edge of the sea ice. Original… https://www.rawpixel.com/image/440132/icy-seaFree Image from public domain licenseThe Channel Tunnel, a 50.5 km-long rail tunnel beneath the English Channel at the Straits of Dover. Original from NASA.… https://www.rawpixel.com/image/441134/channel-tunnel-space-viewFree Image from public domain licenseJuly 4th Fireworks. Washington DC is a spectacular place to celebrate July 4th! Original image from Carol M.… https://www.rawpixel.com/image/421743/red-fireworksFree Image from public domain licenseSt. Patrick's aurora, a green aurora taken at Donnelly Creek, Alaska, March 17th, 2015. Original from NASA. Digitally… https://www.rawpixel.com/image/440109/green-auroraFree Image from public domain licenseBoy beside Store Window Display of Christmas Ornaments. Original from Library of Congress. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/1232771/photograph-boy-christmas-storeFree Image from public domain licenseHermes Greek God sculpture (1907–1915) by Praxiteles. Original public domain image from Boston Public Library.… https://www.rawpixel.com/image/9758963/photo-image-art-vintage-public-domainFree Image from public domain licensePsyche lamp and dagger (1878), vintage sculpture by Walter Runeberg. Original public domain image from The Finnish National… https://www.rawpixel.com/image/11067088/photo-image-face-person-artFree Image from public domain licenseU.S. Capitol, Washington D.C. Photograph taken from the Thomas Jefferson Building. Original image from Carol M.… https://www.rawpixel.com/image/421847/us-capitol-building-washington-dcFree Image from public domain licenseCocker spaniels (1960–1979), vintage dog illustration postcard. Original public domain image from Digital… https://www.rawpixel.com/image/9848597/photo-image-dog-art-animalFree Image from public domain licenseReflection of the Washington Monument in the pool at Pool at the National Mall. Original image from Carol M.… https://www.rawpixel.com/image/421724/the-washington-monumentFree Image from public domain licenseJefferson Memorial, Washington, D.C. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/421744/jefferson-memorialFree Image from public domain licenseThe crew of the Japanese aircraft carrier Zuikaku salute as the flag is lowered during the Battle off Cape Engaño, October… https://www.rawpixel.com/image/8718009/photo-image-vintage-public-domain-peopleFree Image from public domain licensePassengers jam the interior of the St. Louis, Missouri, Union Station in a copyrighted picture taken by B.A. Atwater in 1895… https://www.rawpixel.com/image/8799511/photo-image-public-domain-people-roomFree Image from public domain licenseMagnolia Branch with Four Flowers (ca. 1910-1925). Original from the Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/843227/magnolia-flower-ray-photographyFree Image from public domain licenseSanta Cat Still Image (1914) from The Miriam and Ira D. Wallach Division of Art, Prints and Photographs. Original from The… https://www.rawpixel.com/image/1232720/santa-cat-photoFree Image from public domain licenseAbutilon (Lime Mallow) pod enlarged six times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2222761/karl-blossfeldt-macrophotographyFree Image from public domain licenseOn board the International Space Station NASA astronaut Scott Kelly captured this blue water image. Original from NASA .… https://www.rawpixel.com/image/418614/blue-water-from-spaceFree Image from public domain licenseSerratula Nudicaulis (Bare–Stemmed Common Saw–Wort) enlarged 5 times from Urformen der Kunst (1928) by Karl… https://www.rawpixel.com/image/2211731/karl-blossfeldt-macrophotographyFree Image from public domain licenseCirsium Canum (Queen Anne Thistle) enlarged 4 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2208512/vintage-queen-anne-thistle-photographFree Image from public domain licenseCirsium canum (Queen Anne Thistle) enlarged 4 times, Phlomis umbrosa enlarged 4 times, and Salvia enlarged 6 times from… https://www.rawpixel.com/image/2224263/vintage-queen-anne-thistle-photographFree Image from public domain licenseThis artist's concept illustrates the new view of the Milky Way. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441163/the-milky-wayFree Image from public domain licenseRibbons of Saharan sand dunes seem to glow in sunset colors. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440267/sand-dune-ribbons-the-sahara-desertFree Image from public domain licenseThis illustration shows HD 189733b, a huge gas giant true blue planet that orbits very close to its host star HD 189733… https://www.rawpixel.com/image/440174/planet-earthFree Image from public domain licenseU.S. Capitol Building, Washington D.C. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/421868/us-capitol-building-washington-dcFree Image from public domain licenseOne of the wards for medical cases at Base Hospital, Dijon, France (1919). Original from Library of Congress. Digitally… https://www.rawpixel.com/image/2301121/free-photo-image-spanish-flu-history-pandemicFree Image from public domain licenseAmerican Red Cross canteen staff (1919). Original from Library of Congress. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2301129/free-photo-image-women-nurse-spanish-fluFree Image from public domain licenseThe Zambezi, the fourth largest river in Africa, and the largest east-flowing waterway. Original from NASA. Digitally… https://www.rawpixel.com/image/440595/zambezi-river-space-viewFree Image from public domain licenseInterior of Red Cross House at U.S. General Hospital during influenza epidemic, New Heaven, Connecticut (ca. 1918). Original… https://www.rawpixel.com/image/2301123/free-photo-image-spanish-flu-plague-covidFree Image from public domain licenseLincoln Memorial statue by Daniel Chester French. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/421857/lincoln-memorial-statueFree Image from public domain licenseActual skateboarders mimic those on a street mural, Louisville, Kentucky (1980-2006) by Carol M. Highsmith. Original image… https://www.rawpixel.com/image/595063/carol-highsmiths-kentucky-photographFree Image from public domain licenseLobby ceiling, U.S. Custom House, Philadelphia, Pennsylvania. Original image from Carol M. Highsmith’s America… https://www.rawpixel.com/image/421699/us-custom-houseFree Image from public domain licensePhytoplankton bloom off Newfoundland. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440201/phytoplankton-bloom-off-newfoundlandFree Image from public domain licenseLincoln Memorial. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced… https://www.rawpixel.com/image/421850/lincoln-memorialFree Image from public domain licenseSurgical nurse, Herrin Hospital (private), Herrin, Illinois (1939). Original from Library of Congress. Digitally enhanced by… https://www.rawpixel.com/image/2301133/free-photo-image-spanish-flu-hospital-nurseFree Image from public domain licenseThe Statue of Liberty. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… https://www.rawpixel.com/image/421940/the-statue-libertyFree Image from public domain licenseGuangxi Province in southeast China. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440654/guangxi-provine-space-viewFree Image from public domain licenseHermes Greek God sculpture (1907–1915) by Praxiteles. Original public domain image from Boston Public Library.… https://www.rawpixel.com/image/9759013/photo-image-art-vintage-public-domainFree Image from public domain license Ηρακλειον. Μουσεῖον. Έκ τοῦ Μικροῦ Ανακτόρου τῆς Κνωσσοῦ. Ρυτὸν είς σχῆμακεφαλῆς ταύρου. ΥΜΙ περιόδου (16ος αίών… https://www.rawpixel.com/image/8905253/photo-image-arts-vintage-public-domainFree Image from public domain licenseJamestown, located on Jamestown Island in the Virginia Colony. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441199/jamestown-space-viewFree Image from public domain licenseOur Treasured Washington Monuments at Night. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/421876/the-washington-monumentFree Image from public domain licenseThe Mexican artillery goes into action at the annual Battle of San Jacinto Festival and Battle Reenactment, a living-history… https://www.rawpixel.com/image/582693/carol-highsmiths-texas-photographFree Image from public domain licenseGreenland, 50 Øre (1874), first year of issue for the Greenlandic krone. The uniface note (valued at half a krone) was… https://www.rawpixel.com/image/8718489/photo-image-vintage-public-domain-moneyFree Image from public domain licenseView of Woolworth Building and surrounding buildings, New York City. Mullet's City Hall Post Office and Courthouse (New York… https://www.rawpixel.com/image/8718501/photo-image-vintage-public-domain-postFree Image from public domain licenseBlue letters forming the word copyright https://www.rawpixel.com/image/453347/hands-holding-the-word-copyrightView licenseAssistant Secretary of State Brian A. Nichols visits Montevideo, Uruguay. Original public domain image from Flickr https://www.rawpixel.com/image/9648530/photo-image-people-phone-logoFree Image from public domain licenseKuvanveistäjä carl eneas sjöstrandin muotokuvareliefi, 1889, Ida Meller https://www.rawpixel.com/image/8864592/photo-image-face-art-public-domainFree Image from public domain licenseAchillea Clypeolata (Yarrow) enlarged 15 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2208557/karl-blossfeldt-macrophotographyFree Image from public domain licenseXmas expectations from The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Picture Collection published… https://www.rawpixel.com/image/556827/cute-dog-christmas-postcardFree Image from public domain licenseThe Bronze Buddha at Kamakura, hand–colored albumen silver print from Japan. Described and Illustrated by the Japanese… https://www.rawpixel.com/image/543757/free-illustration-image-buddha-japan-religionFree Image from public domain licenseReclining Naiad (1819–1824) by Antonio Canova. Original from The MET museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2498711/free-photo-image-woman-sculpture-vintageFree Image from public domain licenseCobea scandens (Mexican Ivy) calyx enlarged 4 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2210659/vintage-mexican-photographFree Image from public domain licenseEiffel Tower, Paris, X (1889–1910) by anonymous. Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/843248/the-eiffel-towerFree Image from public domain licenseAsclepias Syriaca (Common Milkweed) enlarged 18 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2222782/karl-blossfeldt-macrophotographyFree Image from public domain licenseTrollius Europaeus (Globeflower) enlarged 5 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2224061/karl-blossfeldt-macrophotographyFree Image from public domain licenseCobaea Scandens (Cup and Saucer Vine) enlarged 4 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2211603/vintage-mexican-photographFree Image from public domain licensePolypodiaceae Aspidieae (Polypody) rolled–up frond enlarged 4 times, Vaccinium Corymbosum (Common or Swamp Blueberry)… https://www.rawpixel.com/image/2224073/karl-blossfeldt-macrophotographyFree Image from public domain licenseWoman Photography from the back (ca. 1883–1914). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2586421/free-photo-image-woman-vintage-photos-photographsFree Image from public domain licenseCentaurea Ruthenica (Star Thristle) enlarged 8 times from Urformen der Kunst (1928) by Karl Blossfeldt. Original from The… https://www.rawpixel.com/image/2211732/karl-blossfeldt-macrophotographyFree Image from public domain licenseSitting dog in a chair by a window (1900–1910) by anonymous. Original from The Rijksmuseum. Digitally enhanced by… https://www.rawpixel.com/image/843247/sitting-terrier-dogFree Image from public domain licenseReclining Naiad (1819–1824) by Antonio Canova. Original from The MET museum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2498705/free-photo-image-sculpture-woman-anatomyFree Image from public domain licenseLake Mackay, the largest of hundreds of ephemeral lakes scattered throughout Western Australia and the Northern Territory.… https://www.rawpixel.com/image/440591/free-photo-image-nasa-map-earthFree Image from public domain licenseOperation at Provident Hospital on South Side of Chicago, Illinois (1941). Original from Library of Congress. Digitally… https://www.rawpixel.com/image/2301130/free-photo-image-surgery-doctor-spanish-fluFree Image from public domain licenseThe Sustina Glacier in the Alaska Range. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441244/free-photo-image-nasa-maps-valleyFree Image from public domain licenseArchitectural art "Lightfall" at building entrance to William J. Nealon Federal Building, Scranton, Pennsylvania. Original… https://www.rawpixel.com/image/421692/free-photo-image-abstract-pattern-textureFree Image from public domain licenseCarpenter and construction worker from Georgia who is recovering from flu (1940). Original from Library of Congress.… https://www.rawpixel.com/image/2301134/free-photo-image-sleep-black-and-white-vintage-photosFree Image from public domain license