Tivoli Tivoli (pop. 53000) is situated along the Aniene river near the Great Waterfall on the western slopes of the Monti Tiburtini (quite high hills to the east of Rome). Since ancient times the town has taken advantage both of its climate and of its position as it controlled the whole traffic from and to the Abruzzi.The richness of the waters favoured, over the centuries, the constructions of large architectural complexes.The most remarkable examples are constituted by Villa Adriana dating from the Roman times, the XVI century Villa d'Este, Villa Gregoriana built in the XIX century in the chasm of the Aniene valley just underneath the Roman acropolis.