The Museo Diocesano is a religious art museum located in the heart of Catania. It is housed in the former Benedictine Monastery of San Nicolò l'Arena, which dates back to the 16th century. The museum's collection includes a wide range of religious artifacts, such as paintings, sculptures, and liturgical objects. Visitors can admire masterpieces by renowned artists, including Antonello da Messina and Giovanni Battista Caracciolo. The Museo Diocesano offers a fascinating insight into the religious history and art of Catania.