Albano Cathedral

The Cathedral of Frascati was built from 1599 on the plans of the architect Ottaviano Mascherino (1536-1606) to cope with the increase in the city's population, which had become too large for the parish church of Santa Maria in Vivario. The construction was financed by an initial contribution from the Holy See, donations from the parishioners and, from 1608, by taxes on the famous local wine. The completion of the first works dates back to 1610. The present Baroque façade dates from 1696-1700 and is the work of Girolamo Fontana. The choir was rebuilt in 1703 and the side campaniles with clocks were added in 1747.

Velletri Cathedral was, according to tradition, a former basilica of the Roman town hall, which was transformed into a Christian church in the 5th century. In the 13th century the church underwent a major renovation with the construction of the polygonal exterior apse and the underground chapel containing the relics of St Eleutheran and St Pontian. The main entrance of the cathedral with its façade was incorporated into the construction of the Bishop's Seminary in the 17th century. In 1950, damaged by the war, the cathedral was restored to a design by the architect Giuseppe Zander.

The Basilica of St. John Bosco was built in the early 1950s by the Sicilian architect Gaetano Rapisardi. On 12 September 1952, the foundation stone of the new building was laid by Clemente Micara, Cardinal Vicar of Rome. The church was inaugurated on 2 May 1959 by Benedetto Aloisi Masella, Cardinal Protector of the Salesians. A large part of the interior remained unfinished until 1964. The day after the inauguration, Pope John XXIII came to pray before the urn containing the remains of Don Bosco (1815-1888), brought from Turin for the occasion.