Constructed at the end of the 14th century, then modified under Louis XI, the celebrated Castillet, the terrace of which gives an uninterrupted view over the roofs of the city, is the symbol of Perpignan.

The Castillet, which was a gateway to the town then a state prison before being classed as an Historic Building in 1889, is now home to a museum which traces the history of North Catalonia from Antiquity to the present day.