The hop on hop off bus was one of my most enjoyable experiences while in Rome. We had 2 days in Rome and managed to visit most of the top notch attractions in the city. You can find these sightseeing buses everywhere in other European cities too. It's very convenient for free and easy travelers like us and most of all, it saves your feet miles of walking. This is a good option to explore the city apart from using the metro system. The buses are frequent and had a good schedule. It was great to be able to hop on and hop off whenever we wanted.
The open top double-decker buses offer great views, but taking photos can be a bit hit and miss. Even though I can't take good pictures from the top, I had fun and enjoy the sights from a very cool perspective.
Are you a fan of hop-on hop-off bus tours?