Pittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267154/photo-image-sky-public-domain-natureFree Image from public domain licenseVintage Victorian turtle engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556608/vintage-turtle-illustrationFree Image from public domain licenseVintage Victorian style atlas engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556742/vintage-globe-stand-illustrationFree Image from public domain licenseVintage Victorian style tree engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556604/vintage-tree-illustrationFree Image from public domain licenseVintage Victorian style pistol engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556681/vintage-gun-illustrationFree Image from public domain licenseVintage Victorian style goblet engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556676/vintage-globet-illustrationFree Image from public domain licenseVintage Victorian style unicorn engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556594/vintage-unicorn-illustrationFree Image from public domain licenseVintage Victorian style crown.Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556733/vintage-heraldic-royal-crown-illustrationFree Image from public domain licenseVintage Victorian style horseshoe engraving. Original from the British Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/556679/vintage-horseshoe-illustrationFree Image from public domain license