If you're seeing all the sites of Athens then Ancient Agora should be on your list! Its easily one of the better sites in Athens. You can buy a ticket from the official website to the Parthenon and all the other sites for only 30 euros and it lasts 5 days!
Voglio vedere di più?
Ho creato curato mappe E itinerari per i viaggiatori che vogliono viaggiare come me.