Castello Ussel, towering on a cliff above the commune of Châtillon in the Italian region of Val d'Aosta, represents an interesting combination of fortress and noble residence. It was erected in the mid-14th century on the orders of Challand Ebalo II, and today is a perfect example of Valdostane fortress architecture - it is the first castle, which consists of a single structure that grew out of the medieval buildings. For several centuries it passed from the hands of the family of Challand to the House of Savoy, and back then was converted into a prison, and later abandoned altogether. In 1983, Baron Marcel Bich, the then owner of the castle, passed it to the ownership of the autonomous region of Val d'Aosta. In those same years Ussel Castello has been renovated and converted into exhibition center.

He who has an enormous rectangular base Castello Ussel is an excellent example of stone construction with false arches and beautiful double-arched windows decorated with floral and geometric designs. In the corners on the south side, facing the mountain, rise two round towers, which were originally connected via a covered walkway. On the same side is the entrance to the horizontal loophole at the top. On the north side of the castle, looking at Châtillon, you can see two rectangular towers with observation tower in the middle - the symbol of feudal power. And inside have survived fireplaces with huge bulky consoles placed on the uplink to use a single chimney.

When Castello Ussel began restoration work, the castle is almost in ruins. Accurate recovery of missing parts contributed by a thorough archaeological excavations. In the 1980s, between the towers of the castle was laid picturesque covered walkway - "kammino de Ronda", where tourists can admire today Châtillon plain and its historic buildings.