Where are marvelous places to travel around the world?
Since your question has finally landed in the Greece section of European travel, I will assume you are intending it to be here. If not let fate be the guide. I have not travel widely in the world but as they say, there is not better place than home. And Greece is home for me and I would like to make it for you too. So, wherever you go to Greece it will be an unforgettable experience. However, I will suggest three places doing great injustice to the rest, but for enticing you I will only say Athens (Acropolis), Santorini (sunsets), Crete (the total experience). The links may close the deal. Have a good time.
