Dominated by a sumptuous four-storey Baroque palace, along with a luxuriant Italian-style garden. Visitors can tour 30 of the richly furnished rooms of the palace, including six underground natural grottos, decorated with dark and light-colored shells and pebbles reflecting nautical themes. Equally impressive are the formal gardens, laid out on ten terraces ornamented with exotic plants, spectacular flowers, topiary, ponds, fountains, obelisks, reliefs, and statues. At the end, there is an amphitheater, on three levels, decorated with statues representing the triumphs of the Borromeo family. The upper terrace, which is 120-feet high, has a breathtaking view of the lake and its surrounding mountains.