The Palatine Hill, (; Latin: Collis Palatium or Mons Palatinus; Italian: Palatino [palaˈtiːno]) which is the centremost of the Seven Hills of Rome, is one of the most ancient parts of the city and has been called "the first nucleus of the Roman Empire." The site is now mainly a large open-air museum while the Palatine Museum houses many finds from the excavations here and from other ancient Italian sites. Imperial palaces were built here started by Augustus. Even before Imperial times the hill was mostly occupied by the houses of the rich. The hill originally had two summits separated by a depression; the highest part was called Palatium and the other Germalus (or Cermalus).