Heraklion is the largest city and administrative capital of Crete, Greece. It has a population of over 225,000. The historic Koules Fortress, built by the Venetians in the 16th century to defend against the Ottomans, dominates the harbor. Saint Titus Cathedral was originally constructed in the Byzantine era as the city's cathedral and has since served as both a Christian church and mosque during different periods of occupation. Lion Square is the central square featuring a fountain decorated with mythological figures and supported by stone lions. The renowned Archaeological Museum of Heraklion houses artifacts from across Crete focusing on the ancient Minoan civilization.