The Plaza del Campidoglio was designed by Michelangelo. In it is the equestrian statue of Marco Aurelio, from the second century. To access it, you have to climb a staircase, which occupies the street «La Cordonata Capitolina». You have all the information in: «Rome tourist guide: what to see, itineraries and recommendations«.
You have all the information in: "Rome tourist guide: what to see, itineraries and recommendations".