Piazza del Comune brings cathedral, baptistery, Torrazzo and civic palace into one compact ensemble formed across medieval communal history and later restoration.
Violin making is living specialised knowledge, not only a collection of historic instruments. Workshops, training, material selection, acoustics and performance keep the tradition active while museums document attribution and conservation.
The Po is an engineered and ecological river. Embankments, ports, drainage, agriculture and seasonal water levels require current safety information and resist a purely picturesque reading.
Give the historic centre a full day and approach the river and rural chapters separately, using authorised paths and appointments rather than entering workshops or fields uninvited.