The Ducal Palace is Gandía's essential sight and the building that saves the city from being judged only by its beach. The oldest parts go back to the medieval palace of the Borja family, later known across Europe as the Borgias.
Inside, the rooms move through Gothic, Renaissance, and Baroque tastes, with the Golden Gallery and Crown Hall giving the visit its flourish. It is worth taking seriously: this is not a token old building in a resort town, but a real piece of Valencian power and family myth.