Settle in for an enlightening drive through Heraklion before enjoying a closer look at local life by browsing the bustling Central Market. The exact route you follow will depend on the traffic conditions, but you can expect to see the fortified walls that the Venetians built in the 15th and 16th centuries. They replaced ones that the Arabs put up in the Middle Ages. The Venetians also constructed massive Koules Castle to guard the entrance to the port. Although damaged by earthquakes and rebuilt several times, the castle is still an impressive sight. In time, you will pause for photos of the Holy Cathedral Temple of Saint Titus, a 19th-century landmark whose relics include the head of the Apostle Titus. Free time in the open-air Central Market will present the opportunity to become immersed in local life. You will find most everything imaginable, especially delicacies such as the fried pastry xerotigana.