Couple walking on the street city painting footwear adult. https://www.rawpixel.com/image/13328214/couple-walking-the-street-city-painting-footwear-adultView licenseA medical practitioner examining a urine flask . Oil painting by C. De Bie after David Teniers the younger. https://www.rawpixel.com/image/13963187/image-person-book-artFree Image from public domain licenseTwo Chinese artist men have a discussion on some rocks in a garden. Gouache by a Chinese artist, ca. 1850. https://www.rawpixel.com/image/13967006/image-cartoon-person-artFree Image from public domain licenseAstronomy: Venus in her chariot, drawn by doves. Engraving by C. Lasinio after Raphael, 1516. https://www.rawpixel.com/image/14020108/image-cloud-cartoon-personFree Image from public domain license