9Basilica of St. Peter, Vatican

The Papal Basilica of Saint Peter in the Vatican, or simply Saint Peter’s Basilica, is a church built in the Renaissance style located in Vatican City, the papal enclave that is within the city of Rome.

It is over 180 metres long and the largest Catholic Church in the world. Located in the Vatican City, it is one of the four largest basilicas in Rome and the main pontifical church.