I had one of my favorite meals in the Athens Plaka. I was just out of college taking a couple of months working my way around Europe. I stayed at the youth hostel right in the Plaka. For breakfast, stopped at one of the tavernas and had fried eggs literally poached in Olive oil. Obviously not the most healthy but still a fantastic memory.

Go to Acropolis and the other others around acropolis. Go to the theater, too. Athens has always been one of my favorite cities.