The whole town is decrepit. There is a semblance that it used to be a thriving town once. Many churches, many many churches. Then typically Italianesque buildings. If they were in good conditions, one would have thought you were walking in Milan.
What it lacks in up keeping and sophistication, Catania makes up for in abundance of seafood, sunbathed vegetables and good cooking. I don't know, maybe the mafia bosses like good cooking.
The main square seems to be the only place where the buildings are kept in descent shape. Luckily for the tourists, this is where you find a sprawling market.