Turin's small metro system is one of the best in the world. It's clean, safe, inexpensive, and…read moremakes it a breeze to get around town. The main red line is all that exists, so it's super easy to get where you're going and not get lost. A single journey ticket costs €1.70 (around $2.00 U.S.). If you're going to be in the city for longer, or if you plan on utilizing public transportation, there's an unlimited ride ticket that's good for 24 hours that costs only €5! It's easy to purchase tickets right in each station. There are machines that have Italian and English so it's easy to understand. I'd recommend using cash to buy your tickets but the machines also take credit cards. I felt extremely safe when riding the metro. I was also surprised at how clean the stations and trains are! I saw no graffiti inside the stations or trains, which is astounding for public transportation, especially in European cities. I rode the trains all hours of the day and night and never even saw any buskers onboard. Take a look around when you stop at each station; there are individual works of art that decorate each stop.