The municipal museum is in this palace and it contains the Ephebe of Antequera. The dictionary says an ephebe was in ancient Greece, a young man aged between 18 and 20 who had just reached manhood or full citizenship and was undergoing military training. The statue is made of bronze and is full scale, being hollow inside. The thickness of the statue is between 3 and 5 mm. It shows a young nude man with arms outstretched, and with a garland of leaves in his hair. The statue of the ephebe is a beautiful work of art and was made in the 1st century AD, during the Roman period. There are only 6 of these statues discovered in Europe, and the one in Antequera is the most perfect. The statue was found by a farmer working his field in 1955. The find was made public only in 1963, and this find caused a sensation with archeologists all over the world. The statue is the best Roman find in all of Spain.

The second most important work of art in this museum is the wooden statue of St. Francis, made by the famous sculptor Pedro de Mena. It has a realism that is incredible. It shows the sensibility of the saint.