 Carretti made in the province of Palermo have more of a square box design, those made in Catania are made with more elaborate 'keys', and then there are the carts made in Agrigento which have their own distinctive style.The craft of making the carts is handed down from generation to generation, through the training of apprentices.Carts are known for being covered in carvings and brightly painted scenes from Sicilian history and folklore as well as intricate geometrical designs.