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Saint Peter Basilica

The ancient basilica of San Pietro was built by Constantine the Great in precisely the place where once stood the tomb of Peter, prince of the apostles, near the Neroniano Circus. The construction of this basilica was brought forward from 315 to 349, following the project which involved the construction of a magnificent building with five naves with a large courtyard and a fountain for ablutions. 

In 1506 began the construction of the new basilica: the Bramante had designed a church with a Greek cross plan, surmounted by a dome inspired by that of the Pantheon. After his death, in 1514, the responsibility passed to Raphael who brought forward the work with Fra' Giocondo and, later, Sangallo. 

Raffaello changed the plant causing it to become a Latin cross and, from that moment onwards, all architects that if they occupied then were the two projects. In 1546 Michelangelo returned again to the project of Bramante, but the contribution of changes that made the building more proportionate and fully compliant with the spirit of the Renaissance. According to his project, the building constructed in the shape of a cross, surmounted by an imposing dome, would dominate the center of a large square. 

The construction of the dome was brought to an end by the door and by the fountain. 

With an internal length of 186 meters, San Pietro is the Catholic Church more extensive in the world and up to the cross placed on the lantern of the cupola is high 136.50 meters. In spite of everything, the gigantic