The seven hills of Rome (Italian: Sette colli di Roma [ˈsɛtte ˈkɔlli di ˈroːma], Latin: Septem colles/montes Romae) east of the river Tiber form the geographical heart of Rome, within the walls of the city.
The seven hills are:
The Vatican Hill (Latin Collis Vaticanus) lying northwest of the Tiber, the Pincian Hill (Latin Mons Pincius), lying to the north, and the Janiculum Hill (Latin Ianiculum), lying to the west, are not counted among the traditional Seven Hills being outside the boundaries of the ancient city of Rome.
Tradition holds that Romulus and Remus founded the original city on the Palatine Hill on April 21, 753 BC, and that the seven hills were first occupied by small settlements that were not grouped. The seven hills' denizens began to interact, which began to bond the groups. The city of Rome, thus, came into being as these separate settlements acted as a group, draining the marshy valleys between them and turning them into markets (fora in Latin). Later, in the early 4th century BC, the Servian Walls were constructed to protect the seven hills.
In modern Rome, five of the seven hills, the Aventine, Caelian, Esquiline, Quirinal, and Viminal Hills, are now the sites of monuments, buildings, and parks. The Capitoline Hill is the location of Rome's city hall, and the Palatine Hill is part of the main archaeological area.
Constantinople, Lisbon, Providence and the Massachusetts cities of Worcester and Newton are also said to have been built on seven hills, following the example of Rome: "The general features of Newton are not without interest. Seven principal elevations mark its surface, like the seven hills of ancient Rome, with the difference that the seven hills of Newton are much more distinct than the seven hills of Rome: Nonantum Hill, Waban Hill, Chestnut Hill, Bald Pate, Oak Hill, Institution Hill and Mount Ida." See also Seven hills of Istanbul.
In a 2019 interview Lindsey Davis revealed her plan to set a series of books on the seven hills of Rome, now accomplished with the publication of A Capitol Death, seventh in the Flavia Albia series which began with The Ides of April, set on the Aventine Hill.