License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Giovanni Battista Piranesi. View along the Via del Corso of the Palazzo dell'Accademia, established by Louis XIV, King of France for French students of Painting, Sculpture and Architecture..., from "Vedute di Roma" (Views of Rome), part I, ca. 1750–78. The Metropolitan Museum of Art.