Geometrical Elevation of the Peace Plaza and Façade of the Opera House, Giacomo Quarenghi, circa 1800

Date: circa 1800. Dimensions: overall: 24.8 x 86 cm (9 3/4 x 33 7/8 in.). Medium: pen and black ink with watercolor, watercolor on laid paper. Collection: National Gallery of Art. Giacomo Quarenghi, Geometrical Elevation of the Peace Plaza and Façade of the Opera House, c. 1800, NGA 61220