Saint Peter's Basilica or The Papal Basilica of Saint Peter in the Vatican is a church built in the Renaissance style located in Vatican City, the papal enclave that is within the city of Rome.
Designed principally by Donato Bramante, Michelangelo, Carlo Maderno and Gian Lorenzo Bernini, Saint Peter's is the most renowned work of Renaissance architecture and the largest church in the world by interior measure. While it is neither the mother church of the Catholic Church nor the cathedral of the Diocese of Rome (these equivalent titles being held by the Archbasilica of Saint John Lateran in Rome), Saint Peter's is regarded as one of the holiest Catholic shrines. It has been described as "holding a unique position in the Christian world" and as "the greatest of all churches of Christendom".
Saint Peter's is a church built in the Renaissance style located in the Vatican City west of the River Tiber and near the Janiculum Hill and Hadrian's Mausoleum. Its central dome dominates the skyline of Rome. The basilica is approached via Saint Peter's Square, a forecourt in two sections, both surrounded by tall colonnades.