A black-and-white photo of a person's hand holding a cube-shaped rock. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3304169/free-photo-image-cc0-creative-commonsFree Image from public domain licenseBlack light up shoes, showing insides of shoes with one heel resting on the top of the other shoe. https://www.rawpixel.com/image/11524263/photo-image-light-public-domain-blackFree Image from public domain licenseSingle tree and powerlines in a desolate desert landscape. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3293042/free-photo-image-cc0-creative-commonsFree Image from public domain licensePortrait of an Unknown Family with a Terrier (ca. 1825–1835) by British 19th Century. https://www.rawpixel.com/image/8230131/image-art-vintage-public-domainFree Image from public domain licenseBlack and white photo of a woman standing in a tall grass field during sunset. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3290308/free-photo-image-apparel-cc0-clothingFree Image from public domain licenseGame On. Original public domain image from Flickr https://www.rawpixel.com/image/4026556/game-on-original-public-domain-image-from-flickrView licenseWhite flowery blossom on branch with petals in Spring. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3292449/free-photo-image-cherry-blossom-cc0Free Image from public domain license