Experience the grandeur of ancient Athens at the Temple of Olympian Zeus, a structure that took 638 years to complete. View the towering ruins of a temple dedicated to the king of gods, whose massive statue once dominated the site. Though these ruins have fallen due to a barbarian attack, a substantial part of the temple remains—including 16 of the original gigantic columns from 6th century BC, offering an awe-inspiring glimpse into the past.