The city of talking stones
The polygonal opera wall, dating back to the 4th century B.C., completely surrounds the area of the Acropolis and the Duomo di S. Paolo (Cathedral of St. Paul), where the “l’ostia incarnata” ("incarnate host"), a Eucharistic miracle of 1228, is kept. On the main square is the Church of S. Maria Maggiore, which has a Romanesque-Gothic style. Its façade is adorned by a marvellous marble rose window. From the piazza you will also see the Baroque Church of the Scolopi; the Palazzo Conti-Gentili, whose façade has a clearly visible sundial designed by the mathematician Secchi in 1875; the monumental Pius IX fountain; and the neoclassical town hall. With their huge boulders, the walls are like talking stones. They tell the ancient tales of gods and mankind.