Mantua's aristocratic D'Arco family lived in this elegant Renaissance palazzo until 1973, when the last member of the family donated it to the city. Though most of the extant palazzo is neoclassical (1780s), the gardens shelter a wing from the 15th century; the highlight of the rooms is the Sala dello Zodiaco, brilliantly frescoed with astrological signs by Giovanni Falconetto in 1520.