One place you are told you must visit in Greece is Delphi. It is the place of the Oracle, where generations of kings would go to find out whether they would prosper or fail. It is where Alexander was told that he would become a great king and even though those times are long past, it is still an amazing place, set in the mountains overlooking miles of olive trees and in the distance the Gulf of Corinth. I made it there in November when the tourist season was over and was blessed with great weather and the place all to myself. That was the time to go!