Historically Pescia has developed from two different functional cores: one dedicated to the public life and commerce overlooking the right bank of the river Pescia Pescia , one dedicated to the religious and monastic activity, however, lies on the left bank. The first group focuses symbolically in the great Piazza Mazzini , in the palace and in the towers , the second in the Cathedral and the Porta Fiorentina (1732), the two centers around which they develop a dense network of narrow streets and wrinkles are connected to each other the characteristic Ponte del Duomo .[Source]