Shop Amazon DK Eyewitness Travel Guide USA Ercole D'Este the Ist Avenue Address: Corso Ercole I d'Este Theme Group: Ferrara, City of the Renaissance, and its Po Delta As Noted In: World Heritage List - Contributor, UNESCO Ercole D'Este the Ist Avenue is a historic district in Ferrara, Emilia-Romagna, Italy. - AsNotedIn Shop Amazon Amazon Books Travel Advertisement