Visit Athens with the Amateur Traveler: This video shows the ruins of the ancient Agora which was the marketplace which is now surrounded by the picturesque neighborhoods of Plaka and Monastiraki. Monastiraki hosts the Athens flea market and the Plaka has colorful shops and cafes. Above this area is the Acropolis with its best known temple the Parthenon. The Acropolis ("highest city" in Greek) has been probably been inhabited since paleolithic times, or at least since the age of Mycenae.