Monumental and elegant square, at the summit where via del Babuino, via di Ripetta and via del Corso meet, the three main arteries of the historic center of Rome. The urbanization of the area began in the second half of the sixteenth century, with the creation of a first fountain: the Trullo fountain. During the 17th century, the two twin churches were built, Santa Maria in Montesanto, also known as the "Church of the Artists", and Santa Maria dei Miracoli. On the opposite side of the square stands the splendid Basilica of Santa Maria del Popolo, dating back to the fifteenth century, enriched and modified over the centuries by the intervention of numerous architects and artists. Inside it preserves extraordinary masterpieces: the Chigi Chapel, built based on a design by Raphael in 1513, finished between 1652 and 1656 with the intervention of Gian Lorenzo Bernini; the Cerasi Chapel, which houses the Crucifixion of Saint Peter and the Conversion of Saint Paul, works by Caravaggio.