Mosaic Floor with Orpheus and the Animals, with Four Seasons in the Corners https://www.rawpixel.com/image/14264326/mosaic-floor-with-orpheus-and-the-animals-with-four-seasons-the-cornersFree Image from public domain license The National Geographic magazine map of the countries bordering the Mediterranean Sea https://www.rawpixel.com/image/8907307/image-vintage-public-domain-mapFree Image from public domain licenseHospital of Santa Maria della Scala, Siena: physicians and surgeons treating the sick. Watercolour, 19--, after Domenico di… https://www.rawpixel.com/image/13963912/image-person-medicine-artFree Image from public domain licenseHospital of Santa Maria della Scala, Siena: a monk receiving the confession of a dying man. Watercolour after Domenico di… https://www.rawpixel.com/image/13960457/image-dog-person-artFree Image from public domain license