You shall leave the Monument of the Eponymous Heroes and continue straight ahead. Cross the ramp and turn left. Then, you will cross the second ramp and go straight ahead, looking at the Parthenon on your right. At the end, you will find the Panathenaic Way. Turn right and, along the left side of the Panathenaic Way, you will stumble upon the remains of the Late Roman Fortification Wall, our 12th point of interest.