The Lateran Apostolic Palace, next to the basilica of the same name which is the cathedral of Rome, was the residence of the popes from the fourth to the fourteenth century.
The building was rebuilt in the sixteenth century under the pontificate of Sixtus V who made it his summer residence. It currently houses the offices of the diocese of Rome. Its interior has been opened to the public with guided tours organized by the Missionaries of Divine Revelation.