The history of this area is rich with people and events. The discovery of a large canoe in Lake Bracciano (now on display at the Pigorini Museum in Rome) dating to around 5750 BC is evidence that this area has been inhabited continuously for many thousands of years. Traces of the great Etruscan people can be seen everywhere in the area, as can those of the Romans who populated both Martignano – transporting its waters with the acqueduct Alseatinum, built under Augustus in the 2nd century AD - and the town of Anguillara, where part of the via Clodia can still be seen. In more recent times various noble families have governed the land and have left their mark on the historical centres of the area. Some of the most interesting places to visit include:

• Etruscan Museum at Trevignano
• Amphitheatre and necropolis of the ancient city of Sutri
• Necropolis di Cerveteri
• Necropolis of Tarquinia
• Castello of Santa Severa
• Castle of Bracciano
• Palazzo Farnese a Caprarola