Cicerone
Cicerone , noun
[Italian, from L. Cicero, the Roman orator. So called from the ordinary talkativeness of such a guide.]
One who shows strangers the curiosities of a place; a guide.
Every glib and loquacious hireling who shows strangers about their picture galleries, palaces, and ruins, is termed by them [the Italians] a cicerone, or a Cicero.