Castello dell'Abbadia, Medieval castle in Canino, Italy.

Castello dell'Abbadia is a medieval fortress in Canino positioned high above the Fiora River's bank. The building features four semi-elliptical towers and defensive walls and now serves as home to an archaeological museum.

The castle began as a Benedictine abbey dedicated to Saint Mamiliano, named in the sources without a founding date. From the 12th century the Aldobrandeschi, Orvieto and the Prefects of Vico fought over it, turning it into a fortified castle with a trapezoidal plan and a watchtower. In 1430 Ranuccio Farnese the Elder received it as a fief, and in 1513 Cardinal Alessandro Farnese, later Pope Paul III, held it for life and remodelled it inside and out.

The castle has housed the Museo archeologico nazionale di Vulci since 1975, showing finds from excavations of the Etruscan city and its necropolises. Since 1999 it has been one of the "porte" of the Parco naturalistico archeologico di Vulci, together with the former convent of San Francesco in Canino and the Masse San Sisto complex at Montalto di Castro. The name Abbadia recalls the Benedictine abbey dedicated to Saint Mamiliano that first stood here.

The castle stands beside the Ponte dell'Abbadia, the Etruscan-Roman bridge over the Fiora, and the museum occupies the former abbey rooms inside it. The site lies near Canino, in the province of Viterbo, and is one of the three "porte" of the Parco naturalistico archeologico di Vulci, together with the ex-convento di San Francesco at Canino and Masse San Sisto at Montalto di Castro. Allow time for both the castle and the park entrances.

Near the castle stands an ancient Etruscan-Roman stone bridge spanning about 30 meters across the Fiora River, known locally as the Devil's Bridge. This bridge shows the engineering skill of antiquity and was long protected by the fortress.