Blue painted rectangle on painted white brick wall. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282266/free-photo-image-background-pattern-brick-wallFree Image from public domain licenseBlue ocean underwater. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286637/free-photo-image-underwater-water-underFree Image from public domain licenseMaple leaves arranged on a flat surface. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3338006/free-photo-image-pattern-texture-leafFree Image from public domain licenseTattoo Design with an Anchor Drawings Ephemera (1900 –1945) illustrated photo. Original public domain image from… https://www.rawpixel.com/image/10184773/image-rose-heart-flowerFree Image from public domain licenseBlooming orange flowers. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282169/free-photo-image-flower-plant-floralFree Image from public domain licenseFree gradient blue painting texture background image, public domain CC0 photo. https://www.rawpixel.com/image/5923841/photo-image-background-texture-public-domainFree Image from public domain licenseA bunch of "mini" pumpkins at an open-air farmers' market. 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Original public domain image from the Library… https://www.rawpixel.com/image/11066184/image-flowers-plant-artFree Image from public domain licenseAutumn fallen leaves of Zelkova serrata. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3339247/free-photo-image-fall-leaves-autumn-cc0Free Image from public domain licenseFree abstract colorful background image, public domain art CC0 photo. https://www.rawpixel.com/image/5922706/photo-image-background-public-domain-artFree Image from public domain licenseJapanese man carrying ball, vintage illustration. Public domain image from our own original 1884 edition of The Ornamental… https://www.rawpixel.com/image/10207388/image-face-person-artFree Image from public domain license Frame from the only surviving hand-colored print of Georges Méliès's 1902 film Le voyage dans la lune (1902)… https://www.rawpixel.com/image/10184848/image-face-frame-handFree Image from public domain licenseSpectrum analysis : six lectures, delivered in 1868, before the Society of Apothecaries of London / by Sir Henry E. Roscoe ;… https://www.rawpixel.com/image/13969825/image-book-art-patternFree Image from public domain licenseFree gradient blue painting texture background image, public domain CC0 photo. https://www.rawpixel.com/image/5924578/photo-image-background-texture-public-domainFree Image from public domain licenseFree colorful bokeh background image, public domain abstract CC0 photo. https://www.rawpixel.com/image/5924836/photo-image-background-aesthetic-public-domainFree Image from public domain licenseThe veronica (sudarium of Saint Veronica), representing the face of Christ. Colour collotype after Gabriel Max. https://www.rawpixel.com/image/13956554/image-face-frame-jesus-christFree Image from public domain licenseEaring on a display. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3284333/free-photo-image-market-creative-commons-cc0Free Image from public domain licenseColorful light abstract background, free public domain CC0 photo. https://www.rawpixel.com/image/5926408/photo-image-background-public-domain-gradientFree Image from public domain licenseValentine (1875–1880) chromolithograph by Kate Greenaway. Original public domain image from The MET Museum. Digitally… https://www.rawpixel.com/image/10543697/image-face-flower-frameFree Image from public domain licenseAstronomy: a star map of the night sky in the northern hemisphere, with the names of the constellations. Coloured engraving. https://www.rawpixel.com/image/13957631/image-stars-paper-frameFree Image from public domain licenseFree colorful wooden blocks image, public domain photography CC0 photo. https://www.rawpixel.com/image/5924930/photo-image-aesthetic-public-domain-goldFree Image from public domain licenseCrystal clear water texture background, free public domain CC0 photo https://www.rawpixel.com/image/5923164/photo-image-background-texture-public-domainFree Image from public domain licensePomegranate and orange fruits. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286384/free-photo-image-food-grapefruit-orangeFree Image from public domain licenseA stack of shipping containers forming a colorful pattern. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3343103/free-photo-image-container-cc0-colorfulFree Image from public domain licenseCloseup of pink flower background, macro shot. Original public domain image from Flickr https://www.rawpixel.com/image/4021651/photo-image-background-flower-plantFree Image from public domain licenseFree colorful interior design image, public domain interior design CC0 photo. https://www.rawpixel.com/image/5924401/photo-image-frames-light-public-domainFree Image from public domain licenseGeorge Washington, 1st President of the United States (1846) by Albert Newsam. Original from the Library of Congress.… https://www.rawpixel.com/image/7615472/image-frame-art-vintageFree Image from public domain licenseOptics: crystals exhibiting interference colours. Colour mezzotint by R.H. Digeon, ca. 1868, after J. Silbermann. https://www.rawpixel.com/image/13959241/image-background-person-artFree Image from public domain licenseAcornhoek, South Africa. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282667/free-photo-image-africa-crowd-southFree Image from public domain licenseBloemenstilleven (1777) by Cornelis Ploos van Amstel and Jan van Huysum https://www.rawpixel.com/image/13734844/bloemenstilleven-1777-cornelis-ploos-van-amstel-and-jan-van-huysumFree Image from public domain licenseButterfly wing nature macro insects bicolor. Free public domain CC0 photo https://www.rawpixel.com/image/6039969/photo-image-public-domain-nature-butterflyFree Image from public domain licenseAutumn foliages of the palmate maple. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3337658/free-photo-image-red-tree-autumn-botanicalFree Image from public domain licenseSaint Mary (the Blessed Virgin) holding the Christ Child and the Sacred Heart. Colour lithograph, 1898. https://www.rawpixel.com/image/13957448/image-heart-angel-faceFree Image from public domain licenseFree abstract colorful background image, public domain art CC0 photo. https://www.rawpixel.com/image/5926668/photo-image-background-public-domain-artFree Image from public domain licenseFlowers in a Glass Vase with a Butterfly (c. 1700) by Herman Henstenburgh https://www.rawpixel.com/image/13737602/flowers-glass-vase-with-butterfly-c-1700-herman-henstenburghFree Image from public domain license