Thomas Jefferson, 3rd President of the United States (1846) by Albert Newsam. Original from the Library of Congress. https://www.rawpixel.com/image/7690926/image-art-public-domain-peopleFree Image from public domain licenseA green forest in New Zealand shrouded in dense fog. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298383/free-photo-image-cc0-art-painting-artFree Image from public domain licenseDrawing for Plate 8: From the Portfolio "Folk Art of Rural Pennsylvania" (c. 1939). https://www.rawpixel.com/image/8228902/image-flowers-art-vintageFree Image from public domain licenseDock along Lake McDonald in Glacier National Park, Montana. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3371094/free-photo-image-cc0-creative-commonsFree Image from public domain licenseErminia and the Shepherds (1750–1755) by Gian Antonio Guardi & Francesco Guardi. https://www.rawpixel.com/image/8230904/image-art-vintage-public-domainFree Image from public domain licenseRed rock outcroppings against blue sky. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3291176/free-photo-image-cc0-creative-commonsFree Image from public domain licenseRustic clothespins hung on a laundry line. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3301255/free-photo-image-animal-bird-cc0Free Image from public domain licenseAmerican crocodile in La Manzanilla swamp, in the state of Jalisco, Mexico. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3340557/free-photo-image-alligator-animal-cc0Free Image from public domain license