Basilica of St. Peter in Vincoli

The church of Saints Ippolito and Lorenzo in Fonte, better known as San Lorenzo in Fonte, is said to have been built over the house of the centurion Hippolytus, where the deacon Lorenzo was held prisoner, and that he was able to baptize his jailer by miraculously causing a spring to flow, which can still be seen in the church basement. The church is first mentioned in 1348. In the 13th and 14th centuries, it was inhabited by Benedictine monks and nuns. The present church was built in 1543 at the request of the Spanish Cardinal Juan Alvarez de Toledo. In 1624, at the request of Pope Urban VIII, enlargement work was carried out by the architect Domenico Castelli, known as Fontanino.

The church of Santa Maria ai Monti was built by the architect Giacomo della Porta at the request of Gregory XIII in 1580 to celebrate the discovery of a 15th-century miraculous image of the Madonna with St. Lawrence and St. Stephen, found in the ruins of a nearby convent of Poor Clares. This image, which is still on the high altar, has been carried in procession every year since the end of April when it was found in 1579. The façade of the church was restored in 1991-1992.

The church of Santa Maria della Neve was first mentioned in the 12th century. In 1607, the building was given to the University of Rigattieri, which rebuilt it at its own expense, in the Baroque style. After the French Revolution, the church was entrusted to the Confraternity of Santa Maria della Neve and its name was changed to its current name.