Genoa (Genova), capital of Liguria, has long been an important commercial and military port. Ferries depart daily from the port for Sardinia. The Medieval district of the city holds many treasures, such as the Church of Sant’Agostino (next to the Museo dell’Architettura e Scultura Ligure), the beautiful Church of San Donato, the 12th-century Church of Santa Maria di Castello, the Gothic Cathedral of San Lorenzo and the Porta Soprana (the old stone entrance gate to the city). Outside the Medieval district, Via Garibaldi, where many of the city’s richest inhabitants built their palaces, is a beautiful walk, with Palazzo Bianco (now an art gallery with paintings by Rubens and Van Dyck), Palazzo Podesta and the magnificently decorated Palazzo Rosso (adjacent to Palazzo Bianco and housing paintings by Caravaggio, Dürer and Titian). The Acquario (Aquarium) presents underwater ocean life, with 1000 species housed in 50 vast tanks, making it the largest center of its kind in Europe.