The Bourbon Prison of Avellino is a monumental complex located in the center of the capital of Irpinia, a short walk from Corso Vittorio Emanuele II. Commissioned by Ferdinand I of Austria and designed in 1826 by engineer Giuliano De Fazio, the monumental complex of the Bourbon Prison of Avellino was begun in 1827 and completed around the 1940s.

The complex, on a hexagonal plan, consists of five arms distributed radially, intended for prison detention; from the main building, home of the director’s offices; from the tholos, circular central body used as a chapel and as a point of connection between all the pavilions; from the inner courtyard. The wonderful structure actively served as a prison until 1987.

Today, however, the monumental complex is the most important museum in the Province of Avellino, with pavilions, halls and dedicated activities. Among all, some sections of the Irpino Museum stand out, such as: the art gallery, the lapidary, the museum that can be visited, the Risorgimento section, the scientific section and the new exhibition "Irpinia. Memory and Evolution", guide to the historical and cultural evolution of the province.

Inside the structure there are also the State Archives, an auditorium and a "Red Room" for conferences. Guardian of the history and civilization of Irpinia, the Bourbon Prison of Avellino is one of the most important and representative cultural symbols of the capital.