It's hardly a coincidence that the word "muse" appears in "museum!" Museum of the Treasure of San Gennaro aims to educate and inspire visitors, so consider adding it to your itinerary.
When you've finished exploring this museum in Naples City Centre, why not check out Herculaneum, Castel dell'Ovo, and Stadio Diego Armando Maradona? They're not very far from Museum of the Treasure of San Gennaro and also a hit with many tourists.