St. Peter's Basilica is the largest Christian church in the world.

The Church of the Holy Sepulchre is a church in the Christian Quarter of the Old City of Jerusalem.

The Archbasilica of Saint John Lateran is the cathedral church of Rome and serves as the seat of the Roman Pontiff.

Santa Maria Maggiore is one of the four Papal basilicas in Rome.

The Basilica of Saint Francis of Assisi is a stunning example of Italian Gothic architecture.

The Basilica of Saint Paul Outside the Walls is one of Rome's four ancient major basilicas or papal basilicas.

The Basilica of Sant'Apollinare Nuovo is a basilica church in Ravenna, Italy.

The Palace of Mafra is a monumental Baroque and Italianized Neoclassical palace-monastery located in Mafra, Portugal.

The Basilica di San Nicola is a church in Bari, Southern Italy, that holds wide religious significance throughout Europe and the Christian world.

The Papal Basilica of Saint Mary of the Angels in Assisi is a grandiose church situated at the plain at the foot of the hill of Assisi.