Roman Fish Market. Arch of Octavius, Albert Bierstadt
Link is to zoomable version on Google Art Project; downloadable file on Wikimedia Commons, original is in the de Young Museum.
Though known primarily for his dramatic landscapes of the American west, 19th century painter Albert Bierstadt also painted other subjects, particularly early in his career.
Here he demonstrates his painting skills with deft renderings of the sights and textures of a fish market in contemporary Rome, complete with American tourists carrying their guidebook.