Not what to see. The things that are decided before you arrive — and that cost money, or a day, if nobody tells you about them.
Most Italy travel advice answers questions of taste: how many days in Rome, which hill town, where to eat. This is the other half. Every page below is about a rule with a consequence: a fine that reaches you months later, a rental desk that turns you away, a ticket that was already gone when you started looking.
Each claim names the law or the official source it comes from, so you can check it rather than trust us.