Plan of ancient Rome with a view of the Pantheon lower left and a triumphal arch lower right https://www.rawpixel.com/image/9328382/image-vintage-books-public-domainFree Image from public domain licenseVenus Surrounded by Putti, artist Arthur Pond, after Parmigianino (Girolamo Francesco Maria Mazzola) https://www.rawpixel.com/image/9329917/venus-surrounded-puttiFree Image from public domain licenseHemelkaart met de noordelijke sterrenbeelden (in or after 1684 - before 1701) by Andreas van Luchtenburg, Andreas van… https://www.rawpixel.com/image/13765471/image-paper-cartoon-faceFree Image from public domain license