Basilica di San Giovanni in Laterano

The Archbasilica Cathedral of the Most Holy Savior and of Saints John the Baptist and John the Evangelist in the Lateran (Italian: Arcibasilica del Santissimo Salvatore e dei Santi Giovanni Battista ed Evangelista in Laterano), also known as the Papal Archbasilica of Saint John [in] Lateran, Saint John Lateran, or the Lateran Basilica, is the Catholic cathedral church of the Diocese of Rome in the city of Rome, and serves as the seat of the bishop of Rome, the pope.

- Wikipedia