Baron Gamba Castle, now located on the restoration, from a historical point of view is the "youngest" of the three castles of Châtillon commune in the Italian region of Val d'Aosta. The other two - Castello dei Passerini d'Entrev Castello di Ussel - were built in the Middle Ages. Castello Gamba was also erected in the 20th century. It stands on a small hill in the western part of the city in the town of Crest deux Bray and completely surrounded by a public park, open to visitors all year round. The castle is clearly visible from the A5 motorway, and its south side hangs over the river Dora Baltea.

Gamba Castello, built in a simple, even simple, is a compact four-storey building is almost square with a central square tower. On the side of the castle stands another building - a service which extends to the north of the two parallel hulls joined by a small courtyard. The castle was built in 1911, designed by the engineer Carlo Saroldi to Baron Charles Maurice Gamba, the wife d'Entrev Angelica, daughter of Count Christian d'Entrev. It was in the park Castello Gamba in June of 2008 was the last Italian concert of Bob Dylan, which was attended by more than 4 thousand people.

Today Castello Gamba closed for restoration. Soon there will be opened the Regional Centre for Contemporary Art, and the lock will be an exhibition area and a venue for cultural events. It is expected that within its walls house the regional Pinacoteca 150 works of contemporary art, which has been selected for this purpose.

Also noteworthy surrounding the castle park of about 7 hectares - on it paved alleys, benches and there's even a wooden fountain. Attraction of the park are three huge tree - sequoia planted in 1888 and has 37 meters in height, 2, 3 meters in diameter and circumference of 7, 2 meters, century-old honey locust ordinary height of 22 meters and a buckeye in the western part of the park .