Having already written about the Plaka area of Athens (including Monastiraki Square, Ermou Street, the Ancient Agora and the Metropolitan Cathedral) and wanting to save the Acropolis for its own post, I decided to give you this Top Ten list of other places to see in Athens!! 1. Temple of Olympian Zeus * The colossal and enormous Temple of Olympian Zeus , dedicated to the King of all Olympian gods , was once the largest temple in all of Greece. While the building of the temple started in the 6th Century BC , it wasn’t finished until 638 years later , in the 2nd Century AD . Talk about procrastination!!