Oh goodness, the possibilities are endless! Here are some ideas I can think of: Heroes of Greek myth- choose a single hero to research, or a general overview of the heroes of Greek myth. How did the Greeks define a hero?
What great acts or adventure(s) did they accomplish or undertake? And so on. Gods of Greek myth- choose a single god to research, or give a general overview of the Greek pantheon (you'd probably want to stick with just the Olympian gods).
The many affairs and children of Zeus The Twelve Labors of Heracles The creation myth(s)- how did the Greeks explain the origins of the universe, the gods, mankind, and animals? The nature myth(s)- how did the Greeks explain everyday natural phenomena, like the rising and setting of the sun, the seasons, etc. The role of Fate in Greek myths The influence of Greek mythology on the modern world The monsters and creatures of Greek myth The Titanomachy- the war between the Titans and the Olympian gods. The cause, those involved, the outcome, etc. The Trojan War The role of women in Greek myths.
Zeus is the first thing that comes to mind, but there are other things. You could do it on heroes or demigods, that share the same godly parent and highlight their similaritiesand differences Like Hercules and Perseus. They were both sons of Zeus, yet they did different things.
Or, instead of demigods, you could do the gods themselves. Compare their relationships and their personalities.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.