In Rome are located the four highest-ranking Catholic churches in the world, called the major basilicas in the world. All of them have a high altar, where only the Pope can celebrate mass.
In addition to St. Peter's Basilica, the following three basilicas enjoy the same distinction:
Minor basilicas and other must-see churches
Other interesting churches
Basilica di San Pietro in Vincoli (Saint Peter in Chains) was built during the fifth century to house the relics of Saint Peter’s chains when he was imprisoned in Jerusalem.
Erected between 1568 and 1584, Il Gesù was the first Jesuit church built in Rome. It is one of the best examples of Baroque architecture.
Basilica of St. Mary of the Altar of Heaven is situated very near the Altare della Patria and is one of the most popular churches among the locals.