The Round Tower, plate 3 from the second edition of Carceri d'invenzione (Imaginary Prisons) by Giovanni Battista Piranesi https://www.rawpixel.com/image/8973352/image-paper-pattern-artFree Image from public domain licenseThe Drawbridge, plate VII from the series Carceri d'Invenzione, Giovanni Battista Piranesi https://www.rawpixel.com/image/8844834/image-art-vintage-public-domainFree Image from public domain licensePlate 3 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7654497/image-vintage-art-public-domainFree Image from public domain licensePlate 14 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7654700/image-vintage-art-public-domainFree Image from public domain licensePlate 7 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7655803/image-vintage-art-public-domainFree Image from public domain licensePlate 5 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7655396/image-vintage-art-public-domainFree Image from public domain licensePlate 8 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651910/image-vintage-art-public-domainFree Image from public domain licensePlate 12 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651908/image-vintage-art-public-domainFree Image from public domain licensePlate 15 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7652006/image-vintage-art-public-domainFree Image from public domain licensePlate 16 from Carceri d'Invenzione. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7652000/image-vintage-art-public-domainFree Image from public domain license