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 of the Façade of the Basilica of S. Croce in Gerusalemme [the Holy Cross in Jerusalem], from Vedute di Roma (Roman Views), ca. 1750. The Metropolitan Museum of Art.