The properties of the Holy See are regulated by the 1929 Lateran Treaty signed with the Kingdom of Italy. Although part of Italian territory, some of them enjoy extraterritoriality similar to those of foreign embassies.
Monti is the 1st rione of Rome, Italy, identified by the initials R. I, located in Municipio I. The name literally means 'mountains' in Italian and comes from the fact that the Esquiline, the Viminal Hills, and parts of the Quirinal and the Caelian Hills belonged to this rione: currently, however, the Esquiline Hill belongs to the rione Esquilino.
Ponte is the 5th rione of Rome, Italy, identified by the initials R. V, and is located in Municipio I. Its name comes from Ponte Sant'Angelo, which connects Ponte with the rione of Borgo. This bridge was built by Emperor Hadrian in 134 AD to connect his mausoleum to the rest of the city. Though Pope Sixtus V changed the rione limits, so that the bridge belongs now to Borgo, not to Ponte anymore, the area has kept its name and a bridge as its coat of arms.
Parione is the 6th rione of Rome, Italy, identified by the initials R. VI, and belongs to the Municipio I. Its name comes from the fact that in the area there was a huge ancient wall, maybe belonging to the stadium of Domitianus; the nickname people gave to this wall was Parietone, from which the name Parione.
Colonna is the 3rd rione of Rome, Italy, identified by the initials R. III and located at the city's historic center in Municipio I. It takes its name from the Column of Marcus Aurelius in the Piazza Colonna, the rione's main square.
Sant'Eustachio is the 8th rione of Rome, Italy, identified by the initials R. VIII. It is named after the eponymous church and is located within the Municipio I.
Regola is the 7th rione of Rome, Italy, identified by the initials R. VII, and belongs to the Municipio I. The name comes from Arenula, which was the name of the soft sand that the river Tiber left after the floods, and that built strands on the left bank.
Pigna is the 9th rione of Rome, Italy, identified by the initials R. IX, and belongs to the Municipio I. The name means "pine cone" in Italian, and the symbol of the rione is the colossal bronze pine cone standing in the middle of the homonymous fountain. The fountain, which was initially located in the Baths of Agrippa, now decorates a vast niche in the wall of the Vatican facing the Cortile della Pigna, located in Vatican City.
Campitelli is the 10th rione of Rome, Italy, identified by the initials R. X, and is located in the Municipio I.
Ripa is the 12th rione of Rome, Italy, identified by the initials R. XII, and it is located in the Municipio I.
Esquilino is the 15th rione, or administrative division, of Rome, Italy, identified by the initials R. XV, and is Located within the Municipio I. It is named after the Esquiline Hill, one of the Seven Hills of Rome.
Sallustiano is the 17th rione of Rome, Italy, identified by the initials R. XVII. It is located within the Municipio I and the name refers to the ancient Gardens of Sallust, which were located here.
Castro Pretorio is the 18th rione of Rome, Italy, identified by the initials R. XVIII, and it is located within the Municipio I. The rione takes its name by the ruins of the Castrum Praetorium, the barracks of the Praetorian Guard, included in the Aurelian Walls.
Campo Marzio is the 4th rione of Rome, Italy, identified by the initials R. IV. It belongs to the Municipio I and covers a smaller section of the area of the ancient Campus Martius. The logo of this rione is a silver crescent on a blue background.
There are more than 900 churches in Rome, which makes it the city with the largest number of churches in the world. Almost all of these are Catholic.
The Via del Corso is a main street in the historical centre of Rome. It is straight in an area otherwise characterized by narrow meandering alleys and small piazzas. Considered a wide street in ancient times, the Corso is approximately 10 metres wide, and it only has room for two lanes of traffic and two narrow sidewalks. The northern portion of the street is a pedestrian area. The length of the street is roughly 1.5 kilometres.
Spagna is an underground station on Line A of the Rome Metro, in the rione Campo Marzio, which was inaugurated in 1980.
Barberini–Fontana di Trevi is an underground station on Line A of the Rome Metro, inaugurated in 1980 and situated under Piazza Barberini in Trevi. Originally, the station was simply named Barberini, and the name was extended in 2000.
Charitable institutions attached to churches in Rome were founded right through the medieval period and included hospitals, hostels, and others providing assistance to pilgrims to Rome from a certain "nation", which thus became these nations' national churches in Rome. These institutions were generally organized as confraternities and funded through charity and legacies from rich benefactors belonging to that "nation". Often, they were also connected to national scholæ, where the clergymen of that nation were trained. The churches and their riches were a sign of the importance of their nation and of the prelates that supported them. Up to 1870 and Italian unification, these national churches also included churches of the Italian states.
The following outline is provided as an overview of and topical guide to Rome:
