"Where is Italy?"
Translation:Ubi est Italia?
Sometimes, but I don't think in sentences like this.
There is a big difference between Italy and Latium. Italia is not a moderately recent term; since Roman times Italia has meant more or less the same as now (in a geographical sense). On the other hand, Latium is only a part of Italia: it is the region around Rome, between Etruria (Tuscany) and Campania.