Rome was called the City of Seven Hills because Rome was located on seven hills and the historical city of Romulus was built on the Palatine Plateau. The reason for building Rome on a hill was to facilitate the defense of the city and control the banks of the Tiber River. As for the remaining six hills, they are the Quirinal Plateau, the Capitoline Plateau, the Cailan Plateau, the Viminal Plateau, the Esquiline Plateau, and the Avitine Plateau. The importance of these plateaus stems from ancient religions, as each plateau is sacred to them