The Museum of the Third is located in two religious houses associated with the Franciscan Order: the Convent of Santo Antonio dos Capuchos and the Building of the Third Order of São Francisco. It was built in the 1970s and is considered a reference for sacred art in the north of the country, and its collection includes many artworks taken from the church The mother is renovated, and it consists mostly of sculptures and paintings from the 18th century and some pieces from the Middle Ages.