The Piazza of Saint Peter's Seen through an Arch of the BasilicaGiacomo Quarenghi · 1778/1779

pen and black ink and watercolor, over graphite and pinholes for guidelines, on medium wove paperNational Gallery of Art · CC0 1.0 · WikidataLindy Arts

The Piazza of Saint Peter's Seen through an Arch of the Basilica

pen and black ink and watercolor, over graphite and pinholes for guidelines, on medium wove paper