The Barnum & Bailey greatest show on earth : L'Institut de divertissement le plus grand et le plus magnifique du… https://www.rawpixel.com/image/8906447/image-arts-vintage-public-domainFree Image from public domain license"Courses au Champ-de-Mars". Huile sur toile, vers 1825. Paris, musée Carnavalet. https://www.rawpixel.com/image/7725865/image-art-public-domain-horseFree Image from public domain licenseSt. Sophia from the Hypodrome [sic], Constantinople by James Robertson https://www.rawpixel.com/image/14311709/st-sophia-from-the-hypodrome-sic-constantinople-james-robertsonFree Image from public domain license