Castelgrande is the oldest and most prominent of Bellinzona's three UNESCO-listed castles. It sits on a rocky promontory rising 30 metres above the valley floor in the centre of the city, its two towers — the Torre Bianca and the Torre Nera — visible from across the plain. A modern underground lift within the rock connects the old town to the castle courtyard.
The castle museum covers the history of Bellinzona from prehistoric times through the medieval period, with good collections of finds from archaeological excavations on the rock. The courtyard and ramparts can be explored freely; the panoramic view from the top of the towers takes in the whole valley and the mountains on both sides. A restaurant in the castle courtyard is open in summer.