Here are a few suggestions for your next trip from Monterotondo-Mentana

In 2 hours, you can reach Rome.

In 3 hours, you can reach Naples.

In 4 hours, you can reach Bologna, Florence.

In 5 hours, you can reach Milan, Verona, Padova.

In 7 hours, you can reach Turin, Genoa, Lugano, Nova Gorica.

In 8 hours, you can reach Messina, Trieste, Villach.