Concerto shadow on red wall. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298251/free-photo-image-curtain-music-stage-curtainsFree Image from public domain licenseA fungus (Agaricus subpalmatus): groups of fruiting bodies on wood. Watercolour, 1894. https://www.rawpixel.com/image/13953526/image-plant-watercolour-black-backgroundFree Image from public domain licenseA wood frame architecture design in the Metropolitan City of Milan. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3295502/free-photo-image-funeral-texture-black-and-whiteFree Image from public domain licenseDrift wood texture phone wallpaper, black and white high definition background https://www.rawpixel.com/image/6169208/photo-image-background-wallpaper-textureFree Image from public domain licenseBlack alarm clock on table. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300553/free-photo-image-time-clock-alarmFree Image from public domain licenseFront of a rowboat forms a triangle in the water. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296437/free-photo-image-architecture-wallpaper-white-woodFree Image from public domain licenseForest border silhouette, nature illustration in black. Free public domain CC0 image. https://www.rawpixel.com/image/6267163/image-background-plant-treeFree Image from public domain licenseBlack dog wearing a sweater with a hood sitting near wood and hay. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300561/free-photo-image-dog-clothing-animal-apparelFree Image from public domain licenseBlack and white sheepdog sitting behind wooden fence. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297003/free-photo-image-animal-animals-images-pictures-banisterFree Image from public domain licenseWooden carving gorilla, animal photo. Free public domain CC0 image. https://www.rawpixel.com/image/6201598/photo-image-background-public-domain-natureFree Image from public domain licenseWooden carving gorilla, animal photo. Free public domain CC0 image. https://www.rawpixel.com/image/6201659/photo-image-background-public-domain-natureFree Image from public domain licenseThe Redwood National and State Parks. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/422011/free-photo-image-black-and-white-landscape-tree-photos-national-parkFree Image from public domain licenseVintage books on a shelf, from our own original public domain library collection. https://www.rawpixel.com/image/4056576/photo-image-background-aesthetic-goldenFree Image from public domain licenseGreen forests and valleys, Ramsau Berchtesgaden, Oberbayern, Germany https://www.rawpixel.com/image/524126/free-photo-image-black-forest-alps-black-and-whiteFree Image from public domain license