Bride and groom's hands touching over wedding bouquet. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283606/free-photo-image-wedding-couple-handFree Image from public domain licenseChemistry: various crystalline substances. Coloured engraving. https://www.rawpixel.com/image/13969473/chemistry-various-crystalline-substances-coloured-engravingFree Image from public domain licenseChemistry: various crystalline substances. Coloured engraving. https://www.rawpixel.com/image/13951393/chemistry-various-crystalline-substances-coloured-engravingFree Image from public domain licenseGeology: various crystalline substances. Coloured lithograph by A. Pralon after G. Pouchet. https://www.rawpixel.com/image/13969361/image-art-football-soccer-ballFree Image from public domain licensePrints of the Brain and the Heart (1700 - 1750) by Jan l Admiral and Jacob Christof Le Blon https://www.rawpixel.com/image/13732469/image-paper-rose-heartFree Image from public domain licenseHand holding glittering stars. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3285138/free-photo-image-hands-human-starFree Image from public domain licenseChemistry: various crystalline substances. Coloured engraving. https://www.rawpixel.com/image/13952436/chemistry-various-crystalline-substances-coloured-engravingFree Image from public domain licensePalm fruits. Colour aquatint by L. Garibbo, c. 1817, after C. Bozzolini. https://www.rawpixel.com/image/13968355/palm-fruits-colour-aquatint-garibbo-1817-after-bozzoliniFree Image from public domain license"I'm Clean" Bumper Stickers Are Given to Any Motorists Who Wish to Place Them on Their Vehicles after Passing an Inspection… https://www.rawpixel.com/image/8800002/photo-image-plant-stickers-public-domainFree Image from public domain licensePennant of Square-Dance Club Flies From Auto Aerial at the Century Village Retirement Community. Photographer: Schulke… https://www.rawpixel.com/image/8799334/photo-image-astronaut-public-domain-peopleFree Image from public domain licenseWoman wearing a gold diamond rings in a white dress. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3284280/free-photo-image-wedding-jewelry-backgroundFree Image from public domain licenseJewelry Designs in Gold, Diamonds and Other Precious Stones, Plate 7 from 'L'Art de la Bijouterie' https://www.rawpixel.com/image/9086535/photo-image-background-paper-artFree Image from public domain licenseCloseup of blue geode. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3285977/free-photo-image-gem-geode-gemstoneFree Image from public domain licenseGeology: various uncut semi-precious stones. Coloured lithograph by H. Sowerby after himself, 1851. https://www.rawpixel.com/image/13958040/image-person-art-public-domainFree Image from public domain licenseLarge engagement ring on hand of bride in Vancouver. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283497/free-photo-image-ring-jewelry-diamondFree Image from public domain licensePurple and red ball decor. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3286408/free-photo-image-modern-architecture-abstract-worldFree Image from public domain licenseThe human brain: the cerebral gyri seen from above, the right hemisphere covered with pia mater. Coloured lithograph by… https://www.rawpixel.com/image/13964586/image-plant-person-oceanFree Image from public domain licenseTexas bride touches her wedding ring on finger in front of white lace wedding dress. Original public domain image from… https://www.rawpixel.com/image/3282662/free-photo-image-wedding-jewelry-gownFree Image from public domain licenseThe eclectic guide to health; or, Physiology and hygiene (1887), vintage human brain illustration. Original public domain… https://www.rawpixel.com/image/11066661/image-face-plant-medicineFree Image from public domain licenseClose-up of a man in a suit unbuttoning his jacket. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3284236/free-photo-image-mens-jewelry-businessman-accessoryFree Image from public domain licenseAn atlas of anatomical plates of the human body ... / by Frederic John Mouat. https://www.rawpixel.com/image/13955221/atlas-anatomical-plates-the-human-body-frederic-john-mouatFree Image from public domain licenseHands and pink flowers. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3301501/free-photo-image-jewelry-manicure-accessoryFree Image from public domain licenseMolecular and Cellular Biology of Cystic Fibrosis: Basic Concepts and Strategies for New Therapies. https://www.rawpixel.com/image/10993900/image-heart-medicine-patternFree Image from public domain licenseSeven pieces of tufa from the vicinity of Naples. Coloured etching by Pietro Fabris, 1776. https://www.rawpixel.com/image/13959052/image-person-art-black-backgroundFree Image from public domain licenseTwo mineral specimens found in the Fossa Grande on Mount Vesuvius. Coloured etching by Pietro Fabris, 1776. https://www.rawpixel.com/image/13964672/image-person-art-patternFree Image from public domain licenseBristol, United Kingdom. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305295/free-photo-image-rock-mineral-cc0-creative-commonsFree Image from public domain licenseCouple's hands touch gingerly on their wedding day. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283302/free-photo-image-wedding-jewelry-ring-backgroundFree Image from public domain licenseYellow flowers on the blue background. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282691/free-photo-image-flowers-daisies-diamond-jewelry-wallpaperFree Image from public domain licenseA person in ripped jeans eating popcorn alongside a succulent plant and typographic sample. Original public domain image… https://www.rawpixel.com/image/3284939/free-photo-image-popcorn-scandinavian-interior-jeansFree Image from public domain licenseBride wearing long lace sleeves and wedding ring in Sainte-Marie-de-Ré. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283196/free-photo-image-wedding-jewelry-accessoryFree Image from public domain licenseWax gourd (Benincasa hispida): one box shaped fruit. Watercolour. https://www.rawpixel.com/image/13962199/wax-gourd-benincasa-hispida-one-box-shaped-fruit-watercolourFree Image from public domain license