The Diocesan Museum of Parma is located in the Bishop's Palace, which stands in Piazza del Duomo and occupies part of the basement of the Palace. The museum's layout includes a chronological exhibition focusing on the history of the spread of Christianity in the city, starting from Roman times, and continuing with the early medieval and medieval sections. The exhibits are accompanied by panels illustrating their significance within the context of their origin, with particular interest in the formation of the Episcopal complex, the Cathedral and the Baptistery. A section of the late Roman walls from the end of the 3rd century A.D. can be seen in the museum. Among the exhibits are early Christian artefacts, coins, Roman stucco and early medieval ceramics.