The Basilica of Saint Peter, officially known in Italian as the Basilica di San Pietro in Vaticano and commonly known as St. Peter's Basilica, is located within the Vatican City in Rome. Named after the apostle Peter, who is traditionally considered the first Pope, it occupies a "unique position" as one of the holiest sites and as "the greatest of all churches of Christendom".
St. Peter's Basilica in "Under St. Peter's"Edit
A secret chamber deep inside St. Peter's was the prison of Jesus, who'd been transformed into a vampire shortly after crucifixion. The Order of the Pipistrelle guarded this chamber, which was visited by each new Pope, who gave some blood to feed the vampire.