Caserta is a city in Campania.
Its main attraction is the UNESCO World Heritage Site called Palazzo Reale (Royal Palace).
During Italian summer holidays it can get quite packed. During the rest of the year it is a sleepy town.
You'll see everyone on a moped, and sometimes 3-5 people on a single one.
Driving can be a bit of a nightmare for the faint of heart, as well.
Walking should be fine, like in most places in Italy.