Reggio Emilia is located at 58 meters above sea level in the plain extending south of the river Po and is 60 km from Bologna. Among the most relevant monuments include the Cathedral (established in the 9th century, rebuilt in the 13th-14th century), the churches of San Prospero (10th century and then completely rebuilt in the 16th century) and the Madonna della Ghiara (late 16th century), the Town Hall (15th century). Apart from some buildings and palaces seven-nineteenth century (municipal theatre, 1857), worthy of memory is, in the immediate surroundings, the Mauritian, sixteenth-century villa where Ariosto. Is the fourth most populous city in the Emilia-Romagna region and is located at the center of an area made up of several hamlets belonging to the municipality, also many kilometers apart from the municipality, which covers an area of over 1606 sq km.