The physiognomy of the large towns of Emilia, beyond the Po, offers far fewer peculiarities, for, as most of them are situated along the great Emilian highway, they have been exposed for ages to the levelling influences of travelling merchants and soldiers. Piacenza, a sorry place as a fortress, carries on an important commerce. Parma, an old ducal residence, has a rich library, a museum, and wonderful frescoes by Correggio in its churches. Reggio, another important {228} station on the Emilian highway, is famous as the birthplace of Ariosto. Modena has its museum, and the precious collection of books and manuscripts known as the _Biblioteca Estense_. Bologna the “Learned,” which has taken the word “Libertas” for its motto, still remains one of the most interesting of Italian cities. There are its Etruscan cemetery, its palaces and mediæval buildings, and its two leaning towers, which will most certainly come down in the end. Bologna is one of the great railway centres, carries on much commerce, and increases rapidly in population. It would have made a far better capital than Rome. Of late years the environs of the city have been frequently flooded by the Reno, and these disasters have cost Bologna its ancient epithet of “the Fat.” Near this bustling place there are others, now stagnant, which can point only to buildings in proof that they, too, were once flourishing. Ferrara, the ancient capital of the Estes, has fallen from its high estate since the Po has deserted it, but still remains a place of some importance. Ravenna has not been deserted by the Po, but by the sea, with which it communicates now by a canal seven miles in length, and navigable for ships drawing thirteen feet of water. The town became the capital of Honorius and Theoderic the Goth, on account of the protection offered by the surrounding marshes. To the exarchs it is indebted for its curious Byzantine edifices, so rich in mosaics. As to the ancient Etruscan city of Adria, on Venetian soil, to the north of the Po, it could hardly have claimed at any period during the last two thousand years to give a name to the neighbouring sea. It lies now at a distance of fourteen miles from it, and even in the time of the Romans it must have been surrounded by lagoons or swamps, for how else can we explain its epithet of “Town of the Seven Seas?” Porto, at the foot of the Euganean Hills, may owe its name to an ancient lake or river.