Castello di Sasso Corbaro is the highest of the three Bellinzona castles, standing 230 metres above the valley floor on a rocky spur to the southeast of the town. Built in 1479 under the orders of the Duke of Milan, it is a compact, no-nonsense military structure with a single residential tower and a large courtyard enclosed by high walls.
The castle houses a museum focused on traditional Ticino crafts and costumes, with a good collection of carved wooden furniture and textiles. The main draw, however, is the view: from this height the whole of the valley is spread below, and on clear days the plain of Lombardy is visible beyond the southern hills. The walk up from the road is about 20 minutes; there is no public transport to this castle.