Rome has its own "hop-on, hop-off" sightseeing buses. The Trambus Open Roma 110 bus leaves every 15 minutes daily 8:30–7:30 from Piazza dei Cinquecento (at the main Termini station), with a two-hour loop including the Colosseum, Piazza Navona, St. Peter's, and the Trevi Fountain. One-day tickets are €15, two-day tickets are €20; children under 10 ride free. A two-day family ticket good for two adults and two children ages 10–17 costs €50. The Archeobus (€12, family pass €40) runs March–November on Fridays, Saturdays, and Sundays. It departs every 20 minutes from the Piazza dei Cinquecento and heads out to the Via Appia Antica, the Colosseum, and the catacombs. Tickets for both can also be purchased ahead of time online (