Piazza San Pietro is probably the most recognizable square in the world. At its center is an Egyptian obelisk erected in 1586. The square was built a hundred years later when it received its distinctive Dorian colonnades, designed by Gian Lorenzo Bernini. Bernini also built a granite fountain on the model of the previously installed fountain built by Carlo Maderno in 1613. One gets the impression that the whole square is an overture to the Basilica of St. Peter, which is on the opposite side from the entrance. The fantastic harmony between these buildings leaves visitors enchanted.