You are now facing the Pantheon, the largest and best-preserved building still standing from the days of ancient Rome.

In 1846 Robert Smirke was replaced as the Museum's architect by his brother Sydney Smirke, whose major addition was the Round Reading Room 1854 – 1857 ; at in diameter it was then the second widest dome in the world, the Pantheon in Rome being slightly wider.

Outer view of the Roman Empire | Roman Pantheon, Rome | Pantheon, still the largest unreinforced solid concrete dome.

Hadrian's Pantheon, Rome | Pantheon in Rome is an example of Roman concrete construction.

Many excellent examples of structures made from these concretes are still standing, notably the huge dome of the Pantheon in Rome and the massive Baths of Caracalla.

Mixtures of ground pozzolan and lime are the cements used by the Romans, and can be found in Roman structures still standing ( e. g. the Pantheon in Rome ).

The interior of the Pantheon ( Rome ) by Giovanni Paolo Pannini, ordered by and belonging to the art collection of Algarotti.

In Rome, he re-built the Pantheon and constructed the Temple of Venus and Roma.

* Pantheon, Rome, now a Catholic church, once a temple to the gods of ancient Rome

Boniface obtained leave from the Byzantine Emperor Phocas to convert the Pantheon in Rome into a Christian church, and on 13 May 609 (?

In the effort to Christianize Rome, Zachary built the original church of Santa Maria sopra Minerva over an ancient temple to Minerva near the Pantheon.

* The Pantheon is constructed in ( Rome ) as it stands today by Hadrian.

* The Pantheon of Agrippa is reconstructed in Rome.

* Construction begins on the Pantheon in Rome.

* Pantheon, in Rome, is started to be built ( approximate date ).

* Pantheon, Rome is finished.

* The Pantheon in Rome is converted into a church.

Raphael and Maria Bibbiena's tomb in the Pantheon, Rome | Pantheon.

Just before coming to the mosque entrance I crossed the street, entered the Hippodrome, and walked ahead to the Obelisk of Theodosius, originally erected in Heliopolis in Egypt about 1,600 B.C. by Thutmose, who also built those now in New York, London and Rome at the Lateran.

The name is misleading, for it is simply the second revision ( A. D. 392 ) made by Jerome of the old Itala version originally used in Rome.

The election of the pope was not always reserved to the cardinals ; the pope was originally elected by the clergy and the people of the diocese of Rome.

Cardinal deacons derive originally from the seven deacons in the Papal Household and the seven deacons who supervised the Church's works in the districts of Rome during the early Middle Ages, when church administration was effectively the government of Rome and provided all social services.

The church and monastery of San Pietro in Montorio originally belonged to the Celestines in Rome ; but they were turned out of it by Sixtus IV to make way for Franciscans, receiving from the Pope in exchange the Church of St Eusebius of Vercelli with the adjacent mansion for a monastery.

The petition was originally presented to representatives of world governments at a ceremony in Rome on 30 November 2010.

Although it was an accepted part of Hadrian's personal history that he was born in Spain, his biography in Augustan History states that he was born in Rome on 24 January AD 76, of a family originally Italian, but which had lived in Spain for many generations.

His remains, originally buried at Bethlehem, are said to have been later transferred to the basilica of Santa Maria Maggiore in Rome, though other places in the West claim some relics — the cathedral at Nepi boasting possession of his head, which, according to another tradition, is in the Escorial.

Latin is an Italic language, originally spoken in ancient Rome and its empire.

The Liber Pontificalis originally only contained the names of the bishops of Rome and the durations of their pontificates.

Laurence was part of the Gregorian mission originally dispatched from Rome in 595 to convert the Anglo-Saxons from their native paganism to Christianity ; he landed at Thanet, Kent, with Augustine in 597, or, as some sources state, first arrived in 601 and was not a part of the first group of missionaries.

Other luthiers who built mandolins included Rafaele Calace ( 1863 onwards ) in Naples, Luigi Embergher ( 1856 – 1943 ) in Rome and Arpino, the Ferrari family ( 1716 onwards, also originally mandolino makers ) in Rome, and De Santi ( 1834 – 1916 ) in Rome.

The pope was originally chosen by those senior clergymen resident in and near Rome.

Stephen also raised Bishop Theodulf of Orléans to the rank of Archbishop, and had Louis release from their exile all political prisoners originally from Rome who had been held by the emperor resulting from the conflict that plagued the early part of Pope Leo III ’ s reign.

It was originally to be crowned with a pileus, the cap given to emancipated slaves in ancient Rome.

The Venetian governmental structure was similar in some ways to the republican system of ancient Rome, with an elected chief executive ( the Doge ), a senate-like assembly of nobles, and a mass of citizens with limited political power, who originally had the power to grant or withhold their approval of each newly elected Doge.

The two emperor system originally established by Diocletian in the previous century fell into regular practice, and the east continued to grow in importance as a centre of trade and imperial power, while Rome itself diminished greatly in importance due to its location far from potential trouble spots, like Central Europe and the East.

The Roman triumph () was a civil ceremony and religious rite of ancient Rome, held to publicly celebrate and sanctify the military achievement of an army commander who had won great military successes, or originally and traditionally, one who had successfully completed a foreign war.

Contrary to other divinatory practices present in Rome ( e. g. haruspicina, consultation of the libri Sibyllini ) augury appears to be autochthonous and originally Latin or Italic.

The Colosseum, or the Coliseum, originally the Flavian Amphitheatre ( Latin: Amphitheatrum Flavium, Italian Anfiteatro Flavio or Colosseo ), is an elliptical amphitheatre in the centre of the city of Rome, Italy, the largest ever built in the Roman Empire, built of concrete and stone.

In Washington, D. C., domes are a common theme among the government buildings, originally meant to imitate the grandeur of ancient Rome.

He built the last aqueduct of ancient Rome, the 22 km long Aqua Alexandrina to supply his enlargement of the Thermae of Nero which have been renamed after the emperor ( Thermae Alexandrinae ).

He allowed a synagogue to be built in Rome, and he gave as a gift to this synagogue a scroll of the Torah known as the Severus Scroll.

Part of the Res Gestae Divi Augusti from the Monumentum Ancyranum ( Temple of Augustus and Rome ) at Ancyra, built between 25 BCE-20 BCE.

Closer to Rome, he built a navigable canal on the Tiber, leading to Portus, his new port just north of Ostia.

He built a large racetrack known as the circus of Gaius and Nero and had an Egyptian obelisk ( now known as the Vatican Obelisk ) transported by sea and erected in the middle of Rome.

In his early twenties Caravaggio moved to Rome where, during the late 16th and early 17th centuries, many huge new churches and palazzi were being built and paintings were needed to fill them.

Perhaps in response to Hamilcar's raids, Rome did build another fleet paid for with donations from wealthy citizens and it was that fleet which rendered the Carthaginian success in Sicily futile, as the stalemate Hamilcar produced in Sicily became irrelevant following the Roman naval victory at the Battle of the Aegates Islands in 241 BC, where the new Roman fleet under consul Gaius Lutatius Catulus was victorious over an undermanned and hastily built Carthaginian fleet.

A small town was built at Empire Studios on the via Pontina outside Rome.

The first in the city of Rome was the extraordinary wooden Amphitheatre of Gaius Scribonius Curio ( built in 53 BCE ).

Arch of Gallienus in Rome, 262 – dedicated to, rather than built by, Gallienus.

In India, water wheels and watermills were built ; in Imperial Rome, water powered mills produced flour from grain, and were also used for sawing timber and stone ; in China, watermills were widely used since the Han Dynasty.

A church, San Giovanni a Porta Latina, dedicated to him was built near the Latin Gate ( Porta Latina ) of Rome, the traditional scene of this event.

The area was initially fully under control of Rome and only in the mid-2nd century was built a limes south of Sala and until Volubilis.

He is said to have built one of the oldest churches in Rome, Santa Pudenziana.

During the Middle Ages, Parma became an important stage of the Via Francigena, the main road connecting Rome to Northern Europe ; several castles, hospitals and inns were built in the following centuries to host the increasing number of pilgrims who passed by Parma and Fidenza, following the Apennines via Collecchio, Berceto and the Corchia ranges before descending the Passo della Cisa into Tuscany, heading finally south toward Rome.

In Rome Gregory XIII built the magnificent Gregorian chapel in the Basilica of St. Peter, and extended the Quirinal Palace in 1580.

The name of Sixtus is often connected with a great building boom in Rome: Santa Sabina on the Aventine Hill was dedicated during his pontificate and he built Santa Maria Maggiore, whose dedication to Mary the Mother of God reflected his acceptance of the Ecumenical council of Ephesus which closed in 431.

This practice, still in force at the end of the fourth century, dates apparently from the period when the great cemeterial basilicas were built in Rome, and owes its origin to the solemn commemoration services of martyrs, held at their tombs on the anniversary of their burial, as early as the third century.