Istituto nazionale per la grafica

The Istituto Centrale per la Grafica in Rome's Rione Trevi holds one of Europe's most important print collections. It was formed in 1975 by merging the Calcografia Camerale, founded by Pope Clement XII in 1738, with the Gabinetto Nazionale delle Stampe. The vaults contain around 23,000 original copper plates, including Giovanni Battista Piranesi's matrices for his Vedute di Roma and the Carceri d'invenzione, alongside roughly 165,000 prints and 25,000 drawings from Albrecht Duerer to Giorgio Morandi. The institute occupies Palazzo Poli, the building behind the Trevi Fountain, and the adjacent Palazzo della Calcografia. Rotating exhibitions on the ground floor display sheets from the collection, the study room serves researchers, and occasional guided tours open the historic printing workshop with its still-functioning intaglio presses.