From 'A1' Freeway: escape Orte, direction Viterbo (superhighway), escape Viterbo - Strada Bagni.
From 'Aurelia': from Roma-Civitavecchia: escape Tarquinia, direction Viterbo; from Livorno-Grosseto: escape Montalto di Castro, direction Viterbo.
Once you arrived at Viterbo, reach Piazza del Plebiscito (communal palace), cover Via San Lorenzo until you reach Piazza della Morte, direction Dome: turn to the first street on the left (Via del Ginnasio).