Greek Odyssey episode 4: This week Joanna meets the people and discovers places in the mountainous region of northern Greece. Here the hills are alive with ancient stories and legends. Some familiar, others long since gone untold. Where better to start than a climb up Mount Olympus, the country’s highest peak. Here, the ancient Greeks believed that the gods had their dwelling place, where they meted out punishments and blessings upon the mere mortals, thousands of feet below. She meets…