Principal bus terminals: Termini Station, Pza Venezia, Largo Argentina. Metro lines A and B operate daily, 5:30am–11:30pm, Sat until 1:30am. Single ticket: €1.50; valid 100 minutes on one or more buses and/or one metro ride. Validate ticket on bus or upon entering metro. 1-day pass: €6; 3-day pass: €16.50; 7-day pass: €24. Tickets available at ticket machines, bars, tobacconists, and newsstands. Tel 800431784.