Junction of the Severn and Wye, from Liber Studiorum, no. 28 by Joseph Mallord William Turner https://www.rawpixel.com/image/8978986/image-paper-plant-frameFree Image from public domain licenseThe Fifth Plague of Egypt, plate 16 from Liber Studiorum by Joseph Mallord William Turner https://www.rawpixel.com/image/8978204/image-paper-person-artFree Image from public domain licenseMer de Glace, plate 50 from Liber Studiorum by Joseph Mallord William Turner https://www.rawpixel.com/image/8981662/mer-glace-plate-from-liber-studiorum-joseph-mallord-william-turnerFree Image from public domain licenseThe Frontispiece to Liber Studiorum by Joseph Mallord William Turner https://www.rawpixel.com/image/8973000/the-frontispiece-liber-studiorum-joseph-mallord-william-turnerFree Image from public domain license"The Loop" near Georgetown, Colorado by William Henry Jackson https://www.rawpixel.com/image/14275014/the-loop-near-georgetown-colorado-william-henry-jacksonFree Image from public domain licenseGrand Canyon of the Colorado River by William Henry Jackson https://www.rawpixel.com/image/14275554/grand-canyon-the-colorado-river-william-henry-jacksonFree Image from public domain licenseAmerican River, from Green Bluffs by Alfred A Hart and Carleton Watkins https://www.rawpixel.com/image/14277487/american-river-from-green-bluffs-alfred-hart-and-carleton-watkinsFree Image from public domain licenseView of the Forks of the American River, 3 miles above Alta by Alfred A Hart and Carleton Watkins https://www.rawpixel.com/image/14278693/photo-image-person-public-domain-bearsFree Image from public domain license