Common vision is like: it's warm, nice sea and many islands. Plus some mixture of ancient history and myths which we read at school - gods, olympic sportsmen, heroes, wine, beautiful bodies on ancient vases... total mess😉
Besides, in recent years many people heard about crisis in Greece though some of them react like: "oh, crisis in Greece... they haven't seen yet what CRISIS is."😅
I haven't been to Greece yet though it would be really interesting.