In 2014, at the Kupferstichkabinett (Museum of Prints and Drawings) of the Staatliche Kunsthalle Karlsruhe, Georg Kabierske, an intern, made a spectacular discovery: two large-format albums containing 297 drawings, previously thought to be the work of the Karlsruhe architect Friedrich Weinbrenner, were identified as the work of the eighteenth century Italian Classical archaeologist, architect, artist, and renowned printmaker Giovanni Battista Piranesi and his studio. In an interdisciplinary research project that lasted several years, the albums were examined from the point of view of art techniques and art history. The research database and platform of the project presents the extensive findings in a variety of ways and makes them experienceable and accessible to researchers, students, and the general public.