The Duomo in Naples is not the grandest in Italy but still holds a grandeur charm of its own. Located not too far from Villa del Tribunali it is only a short walk from some of the big sights and restaurants. It took us around 10 mins walk to find it from the central train station.
The architecture is stunning and there is plenty of artwork on offer to view. With free entry this is definitely a great one to see if you have the time.