Naples, only for the surrounding treasures.
There's no denying that Naples/Napoli is really not a nice place. It is dangerous, plagued with poverty, crime, graffiti, run down, stinks of urine and seems completely unloved. Certainly not a place worth visiting if it wasn't for the magnificent ancient history which surrounds it.
Insider Tip:Only stay long enough to see the sites, then find somewhere nicer.