Inside this church, which was built in the 20th century, are preserved the remains of St. Andrew the Apostle. These are located in a small chapel to the back right of the church as you face the front. The remains of his X-shaped cross are kept behind it. Although the present (substantial, but undistinguished) church was built after World War II, the mosaics give a vivid picture of old Patras. It's important to dress appropriately to visit the cathedral, a major pilgrimage shrine thanks to the presence of St. Andrew's skull in an ornate gold reliquary to the right of the altar. Visitors will find several pleasant cafes in the shaded park across from the cathedral.