Castra Peregrina

The Villa Celimontana (previously known as Villa Mattei) is a villa on the Caelian Hill in Rome, best known for its gardens. Its grounds cover most of the valley between the Aventine Hill and the Caelian.

The church of San Tommaso in Formis is a small church in Rome, situated on the Caelian Hill.

The Minor Basilica of St. Mary in Domnica alla Navicella (Basilica Minore di Santa Maria in Domnica alla Navicella), or simply Santa Maria in Domnica or Santa Maria alla Navicella, is a Roman Catholic basilica in Rome, Italy, dedicated to the Blessed Virgin Mary and active in local charity according to its long tradition. It has been the titular church of Cardinal Marcello Semeraro since 28 November 2020.

The Arch of Dolabella and Silanus (Latin, Arcus Dolabellae et Silani) or Arch of Dolabella is an ancient Roman arch. It was built by senatorial decree in 10 AD by the consuls P. Cornelius Dolabella and C. Junius Silanus.

The Porta Caelimontana or Celimontana was a gate in the Servian Wall on the rise of the Caelian Hill (Caelius Mons).

The Fontana della Navicella (Fountain of the Small Ship) is a fountain built around a marble and travertine replica of an Ancient Roman sculpture, depicting a decorated Roman Galley, and erected in front of the church of Santa Maria in Domnica of Rome, Italy. While the statue is a copy (1518-1519) made by Andrea Sansovino on commission from Pope Leo X based on fragments discovered near the church.

The Caelian Hill (; Latin: Collis Caelius; Italian: Celio [ˈtʃɛːljo]) is one of the famous seven hills of Rome.

The Basilica of St. Stephen in the Round on the Celian Hill (Italian: Basilica di Santo Stefano al Monte Celio, Latin: Basilica S. Stephani in Caelio Monte) is an ancient basilica and titular church in Rome, Italy. Commonly named Santo Stefano Rotondo, the church is Hungary's "national church" in Rome, dedicated to both Saint Stephen, the first Christian martyr, and Stephen I, the sanctified first king of Hungary who converted to Christianity and promoted it in his kingdom. The minor basilica is also the rectory church of the Pontifical Collegium Germanicum et Hungaricum. As of 2005, the Cardinal Priest or titular S. Stephano is Friedrich Wetter.

Celio (Italian pronunciation: [ˈtʃɛːljo]) is the 19th rione of Rome, identified by the initials R. XIX, and is located within the Municipio I. Its coat of arms depicts the bust of an African, with an elephant headdress with golden tusks on a silver background, in memory of an African bust that was found in Via Capo d'Africa.

The Temple of Claudius (Latin: Templum Divi Claudii), also variously known as the Temple of the Divus Claudius, the Temple of the Divine Claudius, the Temple of the Deified Claudius, or in an abbreviated form as the Claudium, was an ancient structure that covered a large area of the Caelian Hill in Rome, Italy. It housed the Imperial cult of the Emperor Claudius, who was deified after his death in 54 AD.

Porta Capena was a gate in the Servian Wall in Rome, Italy. The gate was located in the area of Piazza di Porta Capena, where the Caelian, Palatine and Aventine hills meet. Probably its exact position was between the entrance of Via di Valle delle Camene and the beginning of Via delle Terme di Caracalla (known as the "Archaeological Walk"), facing the curved side of the Circus Maximus. Nowadays Piazza di Porta Capena hosts the FAO Headquarters. Between 1937 and 2004, it was home to the obelisk of Axum.

San Gregorio Magno al Celio, also known as San Gregorio al Celio or simply San Gregorio, is a church in Rome, Italy, which is part of a monastery of monks of the Camaldolese branch of the Benedictine Order. On March 10, 2012, the 1,000th anniversary of the founding of the Camaldolese in 1012 was celebrated here at a Vespers service attended by Anglican and Catholic prelates and jointly led by Pope Benedict XVI and Rowan Williams, Archbishop of Canterbury. San Gregorio is located on the Caelian Hill, in front of the Palatine. Next to the basilica and monastery is a convent of nuns and a homeless shelter run by Mother Teresa of Calcutta's congregation, the Missionaries of Charity.