Fontana del Pantheon

The Piazza della Rotonda is a piazza (city square) in Rome, Italy, on the south side of which is located the Pantheon. The square gets its name from the Pantheon's informal title as the church of Santa Maria Rotonda.

Centro Storico is the first urban zone of Rome, identified by the initials 1A. It belongs to the Municipio I and it includes the main part of the city center.

The Pantheon (UK: , US: ; Latin: Pantheum, from Greek Πάνθειον Pantheion, "[temple] of all the gods") is a former Roman temple and since 609 AD, a Catholic church (Basilica di Santa Maria ad Martyres or Basilica of St. Mary and the Martyrs), in Rome, Italy, on the site of an earlier temple commissioned by Marcus Agrippa during the reign of Augustus (27 BC – 14 AD). It was rebuilt by the emperor Hadrian and probably dedicated c. 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 metres (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: since the 7th century, it has been a church dedicated to St. Mary and the Martyrs (Latin: Sancta Maria ad Martyres) but informally known as "Santa Maria Rotonda". The square in front of the Pantheon is called Piazza della Rotonda. The Pantheon is a state property, managed by Italy's Ministry of Cultural Heritage and Activities and Tourism through the Polo Museale del Lazio. In 2013, it was visited by over 6 million people. The Pantheon's large circular domed cella, with a conventional temple portico front, was unique in Roman architecture. Nevertheless, it became a standard exemplar when classical styles were revived, and has been copied many times by later architects.

The Arch of Pietas (Latin : Arcus Pietatis) was an ancient Roman triumphal arch to the north of the Pantheon on the Campus Martius in Rome.

The Santa Maria Maddalena is a Roman Catholic church in Rome, named after Saint Mary Magdalene. It is located on the Via della Maddalena, one of the streets leading from the Piazza della Rotonda in the Campo Marzio area of historic Rome. It is the regional church for the people of Abruzzo.

The Baths of Nero (Thermae Neronis) or Baths of Alexander (Thermae Alexandrinae) were a complex of ancient Roman baths on the Campus Martius in Rome, built by Nero in either 62 or 64 and rebuilt by Alexander Severus in 227 or 229. It stood between the Pantheon and the Stadium of Domitian and were listed among the most notable buildings in the city by Roman authors and became a much-frequented venue. These thermae were the second large public baths built in Rome, after the Baths of Agrippa, and it was probably the first "imperial-type" complex of baths, with a monumental scale and symmetrical, axially-planned design. While in the sixteenth century the foundations of the caldarium were still visible, nothing else of the structure remains above ground except some fragments of walls incorporated into the structure of Palazzo Madama.

The Basilica of Neptune (Latin: basilica Neptuni) was a basilica built in Rome by Marcus Vipsanius Agrippa in honour of Neptune and in celebration of his naval victories at Mylae, Naulochus and Actium.

Sant'Eustachio [santeuˈstaːkjo] is a Roman Catholic titular church and minor basilica in Rome, named for the martyr Saint Eustace. It is located on Via di Sant'Eustachio in the rione Sant'Eustachio, a block west of the Pantheon and via della Rotonda, and a block east of Sant'Ivo alla Sapienza and the Via della Dogana Vecchia.

The Amphitheater of Caligula (Latin : Amphitheatrum Caligulae) was an Roman amphitheater, built during the reign of the emperor Caligula and demolished only a few years after its construction. It was sited on the Campus Martius in Rome, probably near the Saepta Julia, since the inscription mentioning it was just to the north of the Saepta.Work was begun on the amphitheater between 37 and 41 by Caligula, who wished to give Rome a second stone amphitheater alongside that of Statilius Taurus. Still incomplete on his death, it was abandoned and demolished by Claudius. Around 46, Claudius repaired the Aqua Virgo, damaged by the construction of the amphitheater. His restoration was marked by an inscription on the Arch of Claudius, which formed part of the aqueduct and spanned the Via Lata; this includes the phrase "[…] AQUAE VIRGINIS DISTVRBATOS PER C(AIVM) CAESAREM" (of the Aqua Virgo, damaged by C[aius] Caesar).

The Pontifical Ecclesiastical Academy (Latin: Pontificia Ecclesiastica Academia, Italian: Pontificia Accademia Ecclesiastica) is one of the Roman Colleges of the Catholic Church. The academy is dedicated to training priests to serve in the diplomatic corps and the Secretariat of State of the Holy See. Despite its name, the Pontifical Ecclesiastical Academy is not one of the ten Pontifical Academies of the Holy See. The patron of the Pontifical Ecclesiastical Academy is Saint Anthony the Great.

Palazzo Giustiniani or the Piccolo Colle (Little Hill) is a palace on the Via della Dogana Vecchia and Piazza della Rotonda, in Sant'Eustachio, Rome. The palace contains the official residence of the President of the Senate of the Republic, the Sala Zuccari, the offices of the Life senators and former Presidents of Italy, and some administrative offices. From 1901 until 1985, it was also the seat of the Masonic order of the Grand Orient of Italy.

The Grand Orient of Italy (GOI) (Italian: Grande Oriente d'Italia) is an Italian masonic grand lodge founded in 1805; the viceroy Eugene of Beauharnais was instrumental in its establishment. It was based at the Palazzo Giustiniani, Rome, Italy from 1901 until 1985 and is now located at the Villa del Vascello. Its current Grand Master is Italian journalist Stefano Bisi.As of September 2015 the Grand Orient had 22,675 members in 842 lodges, a significant growth over the preceding three-year period.The international influence of the Grand Orient has decreased since it lost the official recognition of the "Home Grand Lodges" (of England, Ireland, and Scotland) owing to alleged corruption, although it remains regular in government and practice.