Chiesa di San Gregorio della Divina Pietà

The Temple Maggiore was built between 1901 and 1904 on one of the four plots of land obtained through the demolition of parts of the Rome ghetto (1555-1870). In 1889, the competition organized for the design of the new synagogue saw the distinction of Vincenzo Costa and Osvaldo Armanni with building projects mixing Assyrian, Egyptian and above all Greek elements.

The church of San Giovanni Calibita was founded in 1584 on an ancient church mentioned as early as the 11th century. The 16th-century church was renovated in 1640, the façade was completed in 1711 and the interior in 1742. The rich interior decoration is the work of Corrado Giaquinto.

The Basilica of San Nicola in Carcere was consecrated in the 11th century and partially rebuilt in the 16th century, on the site of an earlier church. The church is dedicated to St. Nicholas because of the Greek population in the area. In the 11th century, it was known as the church of Leonis Petrus, in reference to a Jewish family, converted, who turned the nearby theatre of Marcellus into a fortress. The basilica was rebuilt in 1599, with a new façade by Giacomo della Porta. The medieval tower and bell tower, abandoned at the time, have been preserved.