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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.

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.

Celio ([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 Castra Peregrina ("camp of the strangers") was a castrum (a military barracks) in Rome situated on the Caelian Hill. It was occupied by various military units during the later part of the Roman Empire.