Cosiguina Volcano, Nicaragua. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440815/free-photo-image-nicaragua-pacific-ocean-map-nasaFree Image from public domain license The world, on Mercator's projection : showing the different routes to California, and distance by each; routes… https://www.rawpixel.com/image/8905912/image-art-vintage-goldFree Image from public domain license