Summer vacation in Greece won’t make much surprise for anybody nowadays. Winter is quite a different story. If you’re consider yourself a big original, follow my tip and go to Athens for winter holidays.
The ancient Parthenon on the Acropolis mount (the Athenian Acropolis) is floating above the city. There are quite a few cities in the whole world, able to compete with the capital of Greece on their notoriety and fame.
I have never regretted of going to Athens for the Christmas holidays. The story of this city is lost to the ancient times and the lack of historical data is over and above filled in with an amazing in its inspiration and imagination Greek mythology.