Title: The Round Tower, from "Carceri d'invenzione" (Imaginary Prisons)
Object type: Print
Date: ca. 1749–50
Portfolio: Carceri d'invenzione
Artist:  Giovanni Battista Piranesi 
Artist bio: Italian, Mogliano Veneto 1720–1778 Rome
Artist nationality: Italian
Artist role: Artist
Medium: Etching, engraving, sulphur tint or open bite, burnishing; first state of four (Robison)
Dimensions: Sheet: 24 13/16 x 19 1/2 in. (63 x 49.5 cm)
Plate: 21 7/16 x 16 5/16 in. (54.5 x 41.5 cm)
Classification: Prints
Credit line: Harris Brisbane Dick Fund, 1937
Department: Drawings and Prints
Repository: Metropolitan Museum of Art, New York, NY
Tags: term: Prisons, term: Stairs