Free Walking Sightseeing Tour #19 in Rome, Italy

The Church of Saint Mary, the Help of Christians in Via Tuscolana is a Roman Catholic Marian shrine, titular church and Minor Basilica of Rome.

Wikipedia: Santa Maria Ausiliatrice, Rome (EN)

The Aqua Marcia is one of the longest of the eleven aqueducts that supplied the city of Rome. The aqueduct was built between 144–140 BC, during the Roman Republic. The still-functioning Acqua Felice from 1586 runs on long stretches along the route of the Aqua Marcia.

Wikipedia: Aqua Marcia (EN)

The Acqua Felice is one of the aqueducts of Rome, completed in 1586 by Pope Sixtus V, whose birth name, which he never fully abandoned, was Felice Peretti. The first new aqueduct of early modern Rome, its source is at the springs at Pantano Borghese, off Via Casilina. Its length is fifteen miles (24 km), running underground for eight miles (13 km) from its source, first in the channel of Aqua Alexandrina, then alternating on the arches of the Aqua Claudia and the Aqua Marcia for seven miles (11 km) to its terminus at the Fontana dell'Acqua Felice on the Quirinal Hill, standing to one side of the Strada Pia, so as to form a piazza in this still new part of Rome. The engineer was Giovanni Fontana, brother of Sixtus' engineer-architect Domenico Fontana, who recorded that the very day the new pope entered the Lateran, he decided that he would bring water once again to the hills of Rome, which had remained waterless and sparsely inhabited, largely by monasteries, since the original ancient aqueducts had been destroyed in the sixth century. From the source, which Sixtus purchased, there was only a very small fall, and the work required an underground conduit as well as an aqueduct carried on arches.

Wikipedia: Acqua Felice (EN)

The church of San Giuseppe Cafasso is a church in Rome, in the Tuscolano district, in Via Camillo Manfroni.

Wikipedia: Chiesa di San Giuseppe Cafasso (IT)

Santi Marcellino e Pietro ad Duas Lauros is a church in the Prenestino-Labicano quarter of Rome, Italy. Located on the ancient Via Labicana on land once owned by Helena, mother of Constantine, it was along the southern part of the Via Francigena.

Wikipedia: Santi Marcellino e Pietro ad Duas Lauros (EN)

The Catacombs of Marcellinus and Peter are found approximately three kilometers from southeast Rome and the ancient Via Labicana, and date to the 4th century AD. The catacombs were named in reference to the Christian martyrs Marcellinus and Peter who may have been buried there according to legend, near the body of St. Tiburtius.

Wikipedia: Catacombs of Marcellinus and Peter (EN), Website

The Mausoleum of Helena is an ancient building in Rome, Italy, located on the Via Casilina, corresponding to the 3rd mile of the ancient Via Labicana. It was built by the Roman emperor Constantine I between 326 and 330, originally as a tomb for himself, but later assigned to his mother, Helena, who died in 330.

Wikipedia: Mausoleum of Helena (EN), Website

The church of St. Gerard Majella is a church of Rome in Prenestino-Labicano district, in Via Romolo Balzani.

Wikipedia: San Gerardo Maiella, Rome (EN)

The Church of Saint Felix of Cantalice at Centocelle is a Roman Catholic titular church in Rome located in the Centocelle quarter, built as a parish church by decree of Cardinal Francesco Marchetti Selvaggiani, Vicar General of Rome.

Wikipedia: San Felice da Cantalice a Centocelle (EN)