The entrance for the visitors is on the Piazza di Porta Capena. Opened every day except Monday, from 10h to 16h. After the 12th of December only during the weekends (10h 16h) and the other days by request (tel. n°: 00 39 06 0608) from 9h to 21h.
Thanks to Rome Municipality for the photos of the Circo Massimo.