I want to visit the nicest and most important monuments of Greece.
Here is a list of what I think are the most important monuments and remnants of various civilizations in Greece. This order is just as the locations come to mind, not in order of importance:
Mycenae Ancient city site, home to many civilizations over thousands of years
Rhodes: island location with both The Acropolis of Rhodes, and "Old Town", said to be one of the largest medieval walled cities still in existance; exciting history of the Crusading Knights Hospitaliers and Templar
Santorini; island location, excavations at Akrotiri of an ancient minoan village with a very civilized lifestyle covered in a volcanic eruption around 1630 BC triggering stories of the lost city of Atlantis
Delos: island location, Sacred Island next to Mykonos, many ruins and museum, very interesting history
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