Rome Walking Tour

Vatican City, officially Vatican City State is an independent city-state enclaved within Rome. Established with the Lateran Treaty (1929), it is distinct from yet under "full ownership, exclusive dominion, and sovereign authority and jurisdiction" of the Holy See (Latin: Sancta Sedes). With an area of 44 hectares (110 acres), and a population of about 1,000, it is the smallest sovereign state in the world by both area and population. The Vatican City is an ecclesiastical or sacerdotal-monarchical state (a type of theocracy) ruled by the pope who is the bishop of Rome and head of the Roman Catholic Church. The highest state functionaries are all Catholic clergy of various national origins. Since the return of the popes from Avignon in 1377, they have generally resided at the Apostolic Palace within what is now Vatican City, although at times residing instead in the Quirinal Palace in Rome or elsewhere. The Holy See dates back to early Christianity, and is the primate episcopal see of the Catholic Church, with 1.3 billion Catholics around the world distributed in the Latin Church and 23 Eastern Catholic Churches. The independent Vatican City-state, on the other hand, came into existence in 11 February 1929 by the Lateran Treaty between the Holy See and Italy, which spoke of it as a new creation, not as a vestige of the much larger Papal States (756–1870), which had previously encompassed much of central Italy. Within the Vatican City are religious and cultural sites such as St. Peter's Basilica, the Sistine Chapel and the Vatican Museums. They feature some of the world's most famous paintings and sculptures. The unique economy of Vatican City is supported financially by the sale of postage stamps and souvenirs, fees for admission to museums, and sales of publications.

The Pantheon ("[temple] of all the gods") is a former Roman temple, now a church, on the site of an earlier temple commissioned by Marcus Agrippa during the reign of Augustus (27 BC – 14 AD). It was completed by the emperor Hadrian and probably dedicated about 126 AD. Its date of construction is uncertain, because Hadrian chose not to inscribe the new temple but rather to retain the inscription of Agrippa's older temple, which had burned down. The building is cylindrical with a portico of large granite Corinthian columns (eight in the first rank and two groups of four behind) under a pediment. A rectangular vestibule links the porch to the rotunda, which is under a coffered concrete dome, with a central opening (oculus) to the sky. Almost two thousand years after it was built, the Pantheon's dome is still the world's largest unreinforced concrete dome. The height to the oculus and the diameter of the interior circle are the same, 43 meters (142 ft). It is one of the best-preserved of all Ancient Roman buildings, in large part because it has been in continuous use throughout its history and, since the 7th century, the Pantheon has been in use as a church dedicated to "St. Mary and the Martyrs".

The Roman Forum, also known by its Latin name Forum Romanum (Italian: Foro Romano), is a rectangular forum (plaza) surrounded by the ruins of several important ancient government buildings at the center of the city of Rome. Citizens of the ancient city referred to this space, originally a marketplace, as the Forum Magnum, or simply the Forum. For centuries the Forum was the center of day-to-day life in Rome: the site of triumphal processions and elections; the venue for public speeches, criminal trials, and gladiatorial matches; and the nucleus of commercial affairs. Here statues and monuments commemorated the city's great men. The teeming heart of ancient Rome, it has been called the most celebrated meeting place in the world, and in all history. Located in the small valley between the Palatine and Capitoline Hills, the Forum today is a sprawling ruin of architectural fragments and intermittent archaeological excavations attracting 4.5 million or more sightseers yearly.

The Imperial Fora (Fori Imperiali in Italian) are a series of monumental fora (public squares), constructed in Rome over a period of one and a half centuries, between 46 BC and 113 AD. The forums were the center of the Roman Republic and of the Roman Empire. The Imperial forums, while not part of the Roman Forum, are located relatively close to each other. Julius Caesar was the first to build in this section of Rome and rearranged both the Forum and the Comitium, another forum type space designated for politics, to do so. These forums were the centres of politics, religion and economy in the ancient Roman Empire. During the early 20th century, Mussolini restored the Imperial Fora as part of his campaign to evoke and emulate the past glories of Ancient Rome. But he also built the Via dei Fori Imperiali across the middle of the site, supposedly in order that he could see the Colosseum from his office window. The modern street and its heavy traffic has proved a source of damage to the buildings because of vibration and pollution. There have been a number of proposals to remove the road, but none have taken effect.